20431533552032 has 48 divisors (see below), whose sum is σ = 40907151774720. Its totient is φ = 10042422394368.

The previous prime is 20431533552013. The next prime is 20431533552049. The reversal of 20431533552032 is 23025533513402.

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, 166039073 + ... + 166162079.

It is an arithmetic number, because the mean of its divisors is an integer number (852232328640).

Almost surely, 2^{20431533552032} is an apocalyptic number.

It is an amenable number.

20431533552032 is an abundant number, since it is smaller than the sum of its proper divisors (20475618222688).

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

20431533552032 is a wasteful number, since it uses less digits than its factorization.

20431533552032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211053 (or 211045 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 38.

The spelling of 20431533552032 in words is "twenty trillion, four hundred thirty-one billion, five hundred thirty-three million, five hundred fifty-two thousand, thirty-two".