20657848296 has 32 divisors (see below), whose sum is σ = 52118431200. Its totient is φ = 6822774720.

The previous prime is 20657848271. The next prime is 20657848297. The reversal of 20657848296 is 69284875602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20657848297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3945750 + ... + 3950981.

It is an arithmetic number, because the mean of its divisors is an integer number (1628700975).

Almost surely, 2^20657848296 is an apocalyptic number.

It is an amenable number.

20657848296 is an abundant number, since it is smaller than the sum of its proper divisors (31460582904).

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

20657848296 is a wasteful number, since it uses less digits than its factorization.

20657848296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896849 (or 7896845 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 20657848296 in words is "twenty billion, six hundred fifty-seven million, eight hundred forty-eight thousand, two hundred ninety-six".