20295583768 has 32 divisors (see below), whose sum is σ = 39020448960. Its totient is φ = 9893076480.

The previous prime is 20295583747. The next prime is 20295583783. The reversal of 20295583768 is 86738559202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128880 + ... + 239167.

It is an arithmetic number, because the mean of its divisors is an integer number (1219389030).

Almost surely, 2^20295583768 is an apocalyptic number.

It is an amenable number.

20295583768 is a deficient number, since it is larger than the sum of its proper divisors (18724865192).

20295583768 is a wasteful number, since it uses less digits than its factorization.

20295583768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368227 (or 368223 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 20295583768 in words is "twenty billion, two hundred ninety-five million, five hundred eighty-three thousand, seven hundred sixty-eight".