556976576321 has 12 divisors (see below), whose sum is σ = 613536260736. Its totient is φ = 505248679320.

The previous prime is 556976576269. The next prime is 556976576333. The reversal of 556976576321 is 123675679655.

It is a happy number.

It is not a de Polignac number, because 556976576321 - 2³⁰ = 555902834497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556976576921) 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, 4914941 + ... + 5026986.

It is an arithmetic number, because the mean of its divisors is an integer number (51128021728).

Almost surely, 2^556976576321 is an apocalyptic number.

It is an amenable number.

556976576321 is a deficient number, since it is larger than the sum of its proper divisors (56559684415).

556976576321 is a wasteful number, since it uses less digits than its factorization.

556976576321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942412 (or 9942401 counting only the distinct ones).

The product of its digits is 71442000, while the sum is 62.

The spelling of 556976576321 in words is "five hundred fifty-six billion, nine hundred seventy-six million, five hundred seventy-six thousand, three hundred twenty-one".