21152530036000 has 96 divisors (see below), whose sum is σ = 56696472443520. Its totient is φ = 7691829088000.

The previous prime is 21152530035977. The next prime is 21152530036031. The reversal of 21152530036000 is 63003525112.

It is a super-2 number, since 2×21152530036000² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21152530036000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240325660 + ... + 240413659.

It is an arithmetic number, because the mean of its divisors is an integer number (590588254620).

Almost surely, 2^{21152530036000} is an apocalyptic number.

21152530036000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21152530036000 is an abundant number, since it is smaller than the sum of its proper divisors (35543942407520).

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

21152530036000 is a wasteful number, since it uses less digits than its factorization.

21152530036000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480739355 (or 480739337 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 21152530036000 in words is "twenty-one trillion, one hundred fifty-two billion, five hundred thirty million, thirty-six thousand".