556671020720 has 40 divisors (see below), whose sum is σ = 1370393074944. Its totient is φ = 209570266112.

The previous prime is 556671020683. The next prime is 556671020723. The reversal of 556671020720 is 27020176655.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (556671020723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204657104 + ... + 204659823.

Almost surely, 2^556671020720 is an apocalyptic number.

It is an amenable number.

556671020720 is an abundant number, since it is smaller than the sum of its proper divisors (813722054224).

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

556671020720 is a wasteful number, since it uses less digits than its factorization.

556671020720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409316957 (or 409316951 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 556671020720 in words is "five hundred fifty-six billion, six hundred seventy-one million, twenty thousand, seven hundred twenty".