12556039097 has 32 divisors (see below), whose sum is σ = 15212160000. Its totient is φ = 10123869888.

The previous prime is 12556039033. The next prime is 12556039103. The reversal of 12556039097 is 79093065521.

It is a cyclic number.

It is not a de Polignac number, because 12556039097 - 2⁶ = 12556039033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12556039297) 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, 18383318 + ... + 18384000.

It is an arithmetic number, because the mean of its divisors is an integer number (475380000).

Almost surely, 2^12556039097 is an apocalyptic number.

It is an amenable number.

12556039097 is a deficient number, since it is larger than the sum of its proper divisors (2656120903).

12556039097 is a wasteful number, since it uses less digits than its factorization.

12556039097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 510300, while the sum is 47.

The spelling of 12556039097 in words is "twelve billion, five hundred fifty-six million, thirty-nine thousand, ninety-seven".