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80037368664 = 23311679746649
BaseRepresentation
bin100101010001010011…
…0010101001101011000
321122120221102121011120
41022202212111031120
52302404031244124
6100434010325240
75532254260101
oct1124246251530
9248527377146
1080037368664
1130a4200a780
1213618429820
137716ab9a56
143c33b053a8
152136900d79
hex12a2995358

80037368664 has 128 divisors (see below), whose sum is σ = 223830432000. Its totient is φ = 23644938240.

The previous prime is 80037368657. The next prime is 80037368669. The reversal of 80037368664 is 46686373008.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80037368669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1692412 + ... + 1739060.

It is an arithmetic number, because the mean of its divisors is an integer number (1748675250).

Almost surely, 280037368664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80037368664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111915216000).

80037368664 is an abundant number, since it is smaller than the sum of its proper divisors (143793063336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80037368664 is a wasteful number, since it uses less digits than its factorization.

80037368664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46833 (or 46829 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 80037368664 in words is "eighty billion, thirty-seven million, three hundred sixty-eight thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 67 88 97 132 134 194 201 264 268 291 388 402 536 582 737 776 804 1067 1164 1474 1608 2134 2211 2328 2948 3201 4268 4422 5896 6402 6499 8536 8844 12804 12998 17688 19497 25608 25996 38994 46649 51992 71489 77988 93298 139947 142978 155976 186596 214467 279894 285956 373192 428934 513139 559788 571912 857868 1026278 1119576 1539417 1715736 2052556 3078834 3125483 4105112 4524953 6157668 6250966 9049906 9376449 12315336 12501932 13574859 18099812 18752898 25003864 27149718 34380313 36199624 37505796 49774483 54299436 68760626 75011592 99548966 103140939 108598872 137521252 149323449 199097932 206281878 275042504 298646898 303171851 398195864 412563756 597293796 606343702 825127512 909515553 1194587592 1212687404 1819031106 2425374808 3334890361 3638062212 6669780722 7276124424 10004671083 13339561444 20009342166 26679122888 40018684332 80037368664