20702568574120 has 128 divisors (see below), whose sum is σ = 47129388883200. Its totient is φ = 8184186537984.

The previous prime is 20702568574091. The next prime is 20702568574211. The reversal of 20702568574120 is 2147586520702.

It is a super-2 number, since 2×20702568574120² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 998040469 + ... + 998061211.

It is an arithmetic number, because the mean of its divisors is an integer number (368198350650).

Almost surely, 2^{20702568574120} is an apocalyptic number.

20702568574120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20702568574120 is an abundant number, since it is smaller than the sum of its proper divisors (26426820309080).

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

20702568574120 is a wasteful number, since it uses less digits than its factorization.

20702568574120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21779 (or 21775 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 20702568574120 in words is "twenty trillion, seven hundred two billion, five hundred sixty-eight million, five hundred seventy-four thousand, one hundred twenty".