556657092978 has 16 divisors (see below), whose sum is σ = 1272359069760. Its totient is φ = 159044883696.

The previous prime is 556657092973. The next prime is 556657092983. The reversal of 556657092978 is 879290756655.

It is an interprime number because it is at equal distance from previous prime (556657092973) and next prime (556657092983).

It is not an unprimeable number, because it can be changed into a prime (556657092973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6626870113 + ... + 6626870196.

It is an arithmetic number, because the mean of its divisors is an integer number (79522441860).

Almost surely, 2^556657092978 is an apocalyptic number.

556657092978 is an abundant number, since it is smaller than the sum of its proper divisors (715701976782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556657092978 is a wasteful number, since it uses less digits than its factorization.

556657092978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13253740321.

The product of its (nonzero) digits is 285768000, while the sum is 69.

The spelling of 556657092978 in words is "five hundred fifty-six billion, six hundred fifty-seven million, ninety-two thousand, nine hundred seventy-eight".