12104957512657 has 16 divisors (see below), whose sum is σ = 12317323291648. Its totient is φ = 11893048534080.

The previous prime is 12104957512633. The next prime is 12104957512699. The reversal of 12104957512657 is 75621575940121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12104957512657 is a prime.

It is a super-2 number, since 2×12104957512657² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12104957512598 and 12104957512607.

It is not an unprimeable number, because it can be changed into a prime (12104957512157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201675583 + ... + 201735595.

It is an arithmetic number, because the mean of its divisors is an integer number (769832705728).

Almost surely, 2^{12104957512657} is an apocalyptic number.

It is an amenable number.

12104957512657 is a deficient number, since it is larger than the sum of its proper divisors (212365778991).

12104957512657 is a wasteful number, since it uses less digits than its factorization.

12104957512657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63760.

The product of its (nonzero) digits is 5292000, while the sum is 55.

The spelling of 12104957512657 in words is "twelve trillion, one hundred four billion, nine hundred fifty-seven million, five hundred twelve thousand, six hundred fifty-seven".