21607055000 has 40 divisors (see below), whose sum is σ = 50625341580. Its totient is φ = 8642820000.

The previous prime is 21607054967. The next prime is 21607055023. The reversal of 21607055000 is 55070612.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2155706 + ... + 2165705.

Almost surely, 2^21607055000 is an apocalyptic number.

21607055000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21607055000 is an abundant number, since it is smaller than the sum of its proper divisors (29018286580).

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

21607055000 is an equidigital number, since it uses as much as digits as its factorization.

21607055000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321437 (or 4321418 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The spelling of 21607055000 in words is "twenty-one billion, six hundred seven million, fifty-five thousand".