556551604990 has 64 divisors (see below), whose sum is σ = 1054547424000. Its totient is φ = 211203624960.

The previous prime is 556551604981. The next prime is 556551605063. The reversal of 556551604990 is 99406155655.

556551604990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×556551604990³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30315654 + ... + 30334006.

It is an arithmetic number, because the mean of its divisors is an integer number (16477303500).

Almost surely, 2^556551604990 is an apocalyptic number.

556551604990 is a deficient number, since it is larger than the sum of its proper divisors (497995819010).

556551604990 is a wasteful number, since it uses less digits than its factorization.

556551604990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20437.

The product of its (nonzero) digits is 7290000, while the sum is 55.

The spelling of 556551604990 in words is "five hundred fifty-six billion, five hundred fifty-one million, six hundred four thousand, nine hundred ninety".