556420020365 has 96 divisors (see below), whose sum is σ = 765295534080. Its totient is φ = 387661824000.

The previous prime is 556420020311. The next prime is 556420020367. The reversal of 556420020365 is 563020024655.

It is a de Polignac number, because none of the positive numbers 2^k-556420020365 is a prime.

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 95 ways as a sum of consecutive naturals, for example, 1161628196 + ... + 1161628674.

It is an arithmetic number, because the mean of its divisors is an integer number (7971828480).

Almost surely, 2^556420020365 is an apocalyptic number.

556420020365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

556420020365 is a deficient number, since it is larger than the sum of its proper divisors (208875513715).

556420020365 is a wasteful number, since it uses less digits than its factorization.

556420020365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 556420020365 in words is "five hundred fifty-six billion, four hundred twenty million, twenty thousand, three hundred sixty-five".