12556002651 has 8 divisors (see below), whose sum is σ = 17193805584. Its totient is φ = 8144434080.

The previous prime is 12556002643. The next prime is 12556002677. The reversal of 12556002651 is 15620065521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12556002651 - 2³ = 12556002643 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12556002631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56558460 + ... + 56558681.

It is an arithmetic number, because the mean of its divisors is an integer number (2149225698).

Almost surely, 2^12556002651 is an apocalyptic number.

12556002651 is a deficient number, since it is larger than the sum of its proper divisors (4637802933).

12556002651 is a wasteful number, since it uses less digits than its factorization.

12556002651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113117181.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 12556002651 in words is "twelve billion, five hundred fifty-six million, two thousand, six hundred fifty-one".