56556418461 has 16 divisors (see below), whose sum is σ = 76827791040. Its totient is φ = 36997614720.

The previous prime is 56556418427. The next prime is 56556418463. The reversal of 56556418461 is 16481465565.

It is not a de Polignac number, because 56556418461 - 2⁷ = 56556418333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56556418463) 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 15 ways as a sum of consecutive naturals, for example, 292120 + ... + 445473.

It is an arithmetic number, because the mean of its divisors is an integer number (4801736940).

Almost surely, 2^56556418461 is an apocalyptic number.

It is an amenable number.

56556418461 is a deficient number, since it is larger than the sum of its proper divisors (20271372579).

56556418461 is a wasteful number, since it uses less digits than its factorization.

56556418461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738076.

The product of its digits is 3456000, while the sum is 51.

The spelling of 56556418461 in words is "fifty-six billion, five hundred fifty-six million, four hundred eighteen thousand, four hundred sixty-one".