21633286944160 has 48 divisors (see below), whose sum is σ = 51511070693376. Its totient is φ = 8585178432768.

The previous prime is 21633286944067. The next prime is 21633286944193. The reversal of 21633286944160 is 6144968233612.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532294812 + ... + 532335451.

It is an arithmetic number, because the mean of its divisors is an integer number (1073147306112).

Almost surely, 2^{21633286944160} is an apocalyptic number.

21633286944160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21633286944160 is an abundant number, since it is smaller than the sum of its proper divisors (29877783749216).

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

21633286944160 is a wasteful number, since it uses less digits than its factorization.

21633286944160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064630405 (or 1064630397 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 21633286944160 in words is "twenty-one trillion, six hundred thirty-three billion, two hundred eighty-six million, nine hundred forty-four thousand, one hundred sixty".