20688588214960 has 80 divisors (see below), whose sum is σ = 49362629776992. Its totient is φ = 8059099904000.

The previous prime is 20688588214937. The next prime is 20688588214981. The reversal of 20688588214960 is 6941288588602.

It is a tau number, because it is divible by the number of its divisors (80).

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, 3835066 + ... + 7488985.

Almost surely, 2^{20688588214960} is an apocalyptic number.

20688588214960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20688588214960 is an abundant number, since it is smaller than the sum of its proper divisors (28674041562032).

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

20688588214960 is a wasteful number, since it uses less digits than its factorization.

20688588214960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11324662 (or 11324656 counting only the distinct ones).

The product of its (nonzero) digits is 106168320, while the sum is 67.

The spelling of 20688588214960 in words is "twenty trillion, six hundred eighty-eight billion, five hundred eighty-eight million, two hundred fourteen thousand, nine hundred sixty".