556406261456 has 20 divisors (see below), whose sum is σ = 1079322064800. Its totient is φ = 277871535072.

The previous prime is 556406261447. The next prime is 556406261471. The reversal of 556406261456 is 654162604655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20710886 + ... + 20737733.

It is an arithmetic number, because the mean of its divisors is an integer number (53966103240).

Almost surely, 2^556406261456 is an apocalyptic number.

It is an amenable number.

556406261456 is a deficient number, since it is larger than the sum of its proper divisors (522915803344).

556406261456 is a wasteful number, since it uses less digits than its factorization.

556406261456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41449466 (or 41449460 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 556406261456 in words is "five hundred fifty-six billion, four hundred six million, two hundred sixty-one thousand, four hundred fifty-six".