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80664144053 = 312602069163
BaseRepresentation
bin100101100011111110…
…1010010100010110101
321201012121211002100212
41023013331102202311
52310200010102203
6101020120315205
75553634624433
oct1130775224265
9251177732325
1080664144053
1131233896369
1213772312b05
1377b68cb96c
143c9305bd53
15217195c1d8
hex12c7f528b5

80664144053 has 4 divisors (see below), whose sum is σ = 83266213248. Its totient is φ = 78062074860.

The previous prime is 80664144047. The next prime is 80664144103. The reversal of 80664144053 is 35044146608.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80664144053 - 220 = 80663095477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80664144053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80664134053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301034551 + ... + 1301034612.

It is an arithmetic number, because the mean of its divisors is an integer number (20816553312).

Almost surely, 280664144053 is an apocalyptic number.

It is an amenable number.

80664144053 is a deficient number, since it is larger than the sum of its proper divisors (2602069195).

80664144053 is a wasteful number, since it uses less digits than its factorization.

80664144053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602069194.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 80664144053 in words is "eighty billion, six hundred sixty-four million, one hundred forty-four thousand, fifty-three".

Divisors: 1 31 2602069163 80664144053