21152360325366 has 24 divisors (see below), whose sum is σ = 45831303867024. Its totient is φ = 7050603724560.

The previous prime is 21152360325293. The next prime is 21152360325367. The reversal of 21152360325366 is 66352306325112.

21152360325366 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 2 + 3 + 603 + 2 + 5 + 36 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21152360325367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14540725 + ... + 15929136.

It is an arithmetic number, because the mean of its divisors is an integer number (1909637661126).

Almost surely, 2^{21152360325366} is an apocalyptic number.

21152360325366 is an abundant number, since it is smaller than the sum of its proper divisors (24678943541658).

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

21152360325366 is a wasteful number, since it uses less digits than its factorization.

21152360325366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30508436 (or 30508433 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 21152360325366 in words is "twenty-one trillion, one hundred fifty-two billion, three hundred sixty million, three hundred twenty-five thousand, three hundred sixty-six".