21732266480808 has 32 divisors (see below), whose sum is σ = 58509948218400. Its totient is φ = 6686851224768.

The previous prime is 21732266480777. The next prime is 21732266480819. The reversal of 21732266480808 is 80808466223712.

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, 34827349818 + ... + 34827350441.

It is an arithmetic number, because the mean of its divisors is an integer number (1828435881825).

Almost surely, 2^{21732266480808} is an apocalyptic number.

It is an amenable number.

21732266480808 is an abundant number, since it is smaller than the sum of its proper divisors (36777681737592).

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

21732266480808 is a wasteful number, since it uses less digits than its factorization.

21732266480808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69654700281 (or 69654700277 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 21732266480808 in words is "twenty-one trillion, seven hundred thirty-two billion, two hundred sixty-six million, four hundred eighty thousand, eight hundred eight".