12657146032555 has 32 divisors (see below), whose sum is σ = 16354639093248. Its totient is φ = 9368706508800.

The previous prime is 12657146032519. The next prime is 12657146032561. The reversal of 12657146032555 is 55523064175621.

It is not a de Polignac number, because 12657146032555 - 2¹⁷ = 12657145901483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8782725 + ... + 10121785.

It is an arithmetic number, because the mean of its divisors is an integer number (511082471664).

Almost surely, 2^{12657146032555} is an apocalyptic number.

12657146032555 is a deficient number, since it is larger than the sum of its proper divisors (3697493060693).

12657146032555 is a wasteful number, since it uses less digits than its factorization.

12657146032555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340967.

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 12657146032555 in words is "twelve trillion, six hundred fifty-seven billion, one hundred forty-six million, thirty-two thousand, five hundred fifty-five".