556138077384 has 64 divisors (see below), whose sum is σ = 1536135891840. Its totient is φ = 166888832000.

The previous prime is 556138077359. The next prime is 556138077389. The reversal of 556138077384 is 483770831655.

It is a super-2 number, since 2×556138077384² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (556138077389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29622867 + ... + 29641634.

It is an arithmetic number, because the mean of its divisors is an integer number (24002123310).

Almost surely, 2^556138077384 is an apocalyptic number.

It is an amenable number.

556138077384 is an abundant number, since it is smaller than the sum of its proper divisors (979997814456).

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

556138077384 is a wasteful number, since it uses less digits than its factorization.

556138077384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59264550 (or 59264546 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 556138077384 in words is "five hundred fifty-six billion, one hundred thirty-eight million, seventy-seven thousand, three hundred eighty-four".