20960457168 has 60 divisors (see below), whose sum is σ = 62988319680. Its totient is φ = 5988701376.

The previous prime is 20960457157. The next prime is 20960457169. The reversal of 20960457168 is 86175406902.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20960457169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4453528 + ... + 4458231.

It is an arithmetic number, because the mean of its divisors is an integer number (1049805328).

Almost surely, 2^20960457168 is an apocalyptic number.

20960457168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20960457168 is an abundant number, since it is smaller than the sum of its proper divisors (42027862512).

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

20960457168 is a wasteful number, since it uses less digits than its factorization.

20960457168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8911784 (or 8911771 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 20960457168 in words is "twenty billion, nine hundred sixty million, four hundred fifty-seven thousand, one hundred sixty-eight".