20597502332 has 18 divisors (see below), whose sum is σ = 39620403144. Its totient is φ = 9362500840.

The previous prime is 20597502323. The next prime is 20597502337. The reversal of 20597502332 is 23320579502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20597502337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21277928 + ... + 21278895.

It is an arithmetic number, because the mean of its divisors is an integer number (2201133508).

Almost surely, 2^20597502332 is an apocalyptic number.

20597502332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20597502332 is a deficient number, since it is larger than the sum of its proper divisors (19022900812).

20597502332 is a wasteful number, since it uses less digits than its factorization.

20597502332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42556849 (or 42556836 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 20597502332 in words is "twenty billion, five hundred ninety-seven million, five hundred two thousand, three hundred thirty-two".