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80659901088 = 25341317197411
BaseRepresentation
bin100101100011110110…
…1000110101010100000
321201012022211112010000
41023013231012222200
52310142413313323
6101015445340000
75553553563324
oct1130755065240
9251168745100
1080659901088
1131231458588
1213770a07600
1377b5a74630
143c92675984
1521713bee43
hex12c7b46aa0

80659901088 has 480 divisors, whose sum is σ = 284768447040. Its totient is φ = 22126141440.

The previous prime is 80659901033. The next prime is 80659901117. The reversal of 80659901088 is 88010995608.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10880103 + ... + 10887513.

It is an arithmetic number, because the mean of its divisors is an integer number (593267598).

Almost surely, 280659901088 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 80659901088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142384223520).

80659901088 is an abundant number, since it is smaller than the sum of its proper divisors (204108545952).

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

80659901088 is a wasteful number, since it uses less digits than its factorization.

80659901088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The spelling of 80659901088 in words is "eighty billion, six hundred fifty-nine million, nine hundred one thousand, eighty-eight".