556211604771 has 12 divisors (see below), whose sum is σ = 805570699648. Its totient is φ = 369813611664.

The previous prime is 556211604763. The next prime is 556211604787. The reversal of 556211604771 is 177406112655.

556211604771 is a `hidden beast` number, since 5 + 5 + 62 + 116 + 0 + 477 + 1 = 666.

It is not a de Polignac number, because 556211604771 - 2³ = 556211604763 is a prime.

It is a super-2 number, since 2×556211604771² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556211604071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82840195 + ... + 82846908.

Almost surely, 2^556211604771 is an apocalyptic number.

556211604771 is a deficient number, since it is larger than the sum of its proper divisors (249359094877).

556211604771 is a wasteful number, since it uses less digits than its factorization.

556211604771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165687482 (or 165687479 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 556211604771 in words is "five hundred fifty-six billion, two hundred eleven million, six hundred four thousand, seven hundred seventy-one".