556420020368 has 10 divisors (see below), whose sum is σ = 1078063789494. Its totient is φ = 278210010176.

The previous prime is 556420020367. The next prime is 556420020479. The reversal of 556420020368 is 863020024655.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 536743786384 + 19676233984 = 732628^2 + 140272^2 .

It is not an unprimeable number, because it can be changed into a prime (556420020367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17388125621 + ... + 17388125652.

Almost surely, 2^556420020368 is an apocalyptic number.

It is an amenable number.

556420020368 is a deficient number, since it is larger than the sum of its proper divisors (521643769126).

556420020368 is a wasteful number, since it uses less digits than its factorization.

556420020368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34776251281 (or 34776251275 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 556420020368 in words is "five hundred fifty-six billion, four hundred twenty million, twenty thousand, three hundred sixty-eight".