20932216832 has 108 divisors (see below), whose sum is σ = 44070115635. Its totient is φ = 9939038208.

The previous prime is 20932216819. The next prime is 20932216847. The reversal of 20932216832 is 23861223902.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 10466108416 + 10466108416 = 102304^2 + 102304^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=102304.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 150591419 + ... + 150591557.

Almost surely, 2^20932216832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20932216832

20932216832 is an abundant number, since it is smaller than the sum of its proper divisors (23137898803).

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

20932216832 is an frugal number, since it uses more digits than its factorization.

20932216832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 20932216832 in words is "twenty billion, nine hundred thirty-two million, two hundred sixteen thousand, eight hundred thirty-two".