556457900545 has 8 divisors (see below), whose sum is σ = 671479925760. Its totient is φ = 442679357040.

The previous prime is 556457900527. The next prime is 556457900599. The reversal of 556457900545 is 545009754655.

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

It is not a de Polignac number, because 556457900545 - 2¹⁹ = 556457376257 is a prime.

It is a super-2 number, since 2×556457900545² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310869441 + ... + 310871230.

It is an arithmetic number, because the mean of its divisors is an integer number (83934990720).

Almost surely, 2^556457900545 is an apocalyptic number.

It is an amenable number.

556457900545 is a deficient number, since it is larger than the sum of its proper divisors (115022025215).

556457900545 is a wasteful number, since it uses less digits than its factorization.

556457900545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621740855.

The product of its (nonzero) digits is 18900000, while the sum is 55.

The spelling of 556457900545 in words is "five hundred fifty-six billion, four hundred fifty-seven million, nine hundred thousand, five hundred forty-five".