56556531734461 has 8 divisors (see below), whose sum is σ = 61892665647264. Its totient is φ = 51252836326320.

The previous prime is 56556531734459. The next prime is 56556531734489. The reversal of 56556531734461 is 16443713565565.

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

It is a cyclic number.

It is not a de Polignac number, because 56556531734461 - 2¹ = 56556531734459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56556531734461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56556531734441) 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, 8109622515 + ... + 8109629488.

It is an arithmetic number, because the mean of its divisors is an integer number (7736583205908).

Almost surely, 2^{56556531734461} is an apocalyptic number.

It is an amenable number.

56556531734461 is a deficient number, since it is larger than the sum of its proper divisors (5336133912803).

56556531734461 is a wasteful number, since it uses less digits than its factorization.

56556531734461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16219252331.

The product of its digits is 136080000, while the sum is 61.

The spelling of 56556531734461 in words is "fifty-six trillion, five hundred fifty-six billion, five hundred thirty-one million, seven hundred thirty-four thousand, four hundred sixty-one".