556550908641 has 72 divisors (see below), whose sum is σ = 1030513323840. Its totient is φ = 286738087104.

The previous prime is 556550908633. The next prime is 556550908643. The reversal of 556550908641 is 146809055655.

556550908641 is a `hidden beast` number, since 5 + 5 + 6 + 550 + 9 + 0 + 86 + 4 + 1 = 666.

It is not a de Polignac number, because 556550908641 - 2³ = 556550908633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556550908643) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 882301 + ... + 1375338.

Almost surely, 2^556550908641 is an apocalyptic number.

It is an amenable number.

556550908641 is a deficient number, since it is larger than the sum of its proper divisors (473962415199).

556550908641 is a wasteful number, since it uses less digits than its factorization.

556550908641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257715 (or 2257705 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 54.

The spelling of 556550908641 in words is "five hundred fifty-six billion, five hundred fifty million, nine hundred eight thousand, six hundred forty-one".