20598163432 has 64 divisors (see below), whose sum is σ = 48440125440. Its totient is φ = 7977163200.

The previous prime is 20598163387. The next prime is 20598163483. The reversal of 20598163432 is 23436189502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2757 + ... + 202987.

It is an arithmetic number, because the mean of its divisors is an integer number (756876960).

Almost surely, 2^20598163432 is an apocalyptic number.

20598163432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20598163432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24220062720).

20598163432 is an abundant number, since it is smaller than the sum of its proper divisors (27841962008).

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

20598163432 is a wasteful number, since it uses less digits than its factorization.

20598163432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200422 (or 200418 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 20598163432 in words is "twenty billion, five hundred ninety-eight million, one hundred sixty-three thousand, four hundred thirty-two".