20216128960 has 28 divisors (see below), whose sum is σ = 48139657848. Its totient is φ = 8086451456.

The previous prime is 20216128949. The next prime is 20216128973. The reversal of 20216128960 is 6982161202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31587382 + ... + 31588021.

Almost surely, 2^20216128960 is an apocalyptic number.

20216128960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20216128960 is an abundant number, since it is smaller than the sum of its proper divisors (27923528888).

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

20216128960 is an equidigital number, since it uses as much as digits as its factorization.

20216128960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63175420 (or 63175410 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 20216128960 in words is "twenty billion, two hundred sixteen million, one hundred twenty-eight thousand, nine hundred sixty".