556420020366 has 64 divisors (see below), whose sum is σ = 1321573478400. Its totient is φ = 152806784256.

The previous prime is 556420020311. The next prime is 556420020367. The reversal of 556420020366 is 663020024655.

It is a congruent number.

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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 752671 + ... + 1295898.

It is an arithmetic number, because the mean of its divisors is an integer number (20649585600).

Almost surely, 2^556420020366 is an apocalyptic number.

556420020366 is an abundant number, since it is smaller than the sum of its proper divisors (765153458034).

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

556420020366 is a wasteful number, since it uses less digits than its factorization.

556420020366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048833.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 556420020366 in words is "five hundred fifty-six billion, four hundred twenty million, twenty thousand, three hundred sixty-six".