20393092656 has 80 divisors (see below), whose sum is σ = 59258493920. Its totient is φ = 6797685888.

The previous prime is 20393092651. The next prime is 20393092721. The reversal of 20393092656 is 65629039302.

It is a super-2 number, since 2×20393092656² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20393092651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256405 + ... + 326388.

It is an arithmetic number, because the mean of its divisors is an integer number (740731174).

Almost surely, 2^20393092656 is an apocalyptic number.

It is an amenable number.

20393092656 is an abundant number, since it is smaller than the sum of its proper divisors (38865401264).

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

20393092656 is an frugal number, since it uses more digits than its factorization.

20393092656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582822 (or 582798 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The spelling of 20393092656 in words is "twenty billion, three hundred ninety-three million, ninety-two thousand, six hundred fifty-six".