21300555345024 has 64 divisors (see below), whose sum is σ = 57261282150240. Its totient is φ = 7014640705536.

The previous prime is 21300555344989. The next prime is 21300555345029. The reversal of 21300555345024 is 42054355500312.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (21300555345029) 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, 334125937 + ... + 334189680.

Almost surely, 2^{21300555345024} is an apocalyptic number.

21300555345024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21300555345024 is an abundant number, since it is smaller than the sum of its proper divisors (35960726805216).

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

21300555345024 is an equidigital number, since it uses as much as digits as its factorization.

21300555345024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668315717 (or 668315705 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 21300555345024 in words is "twenty-one trillion, three hundred billion, five hundred fifty-five million, three hundred forty-five thousand, twenty-four".