20260659188 has 48 divisors (see below), whose sum is σ = 44257113600. Its totient is φ = 7884470880.

The previous prime is 20260659173. The next prime is 20260659191. The reversal of 20260659188 is 88195606202.

It is a congruent number.

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, 226283 + ... + 302861.

It is an arithmetic number, because the mean of its divisors is an integer number (922023200).

Almost surely, 2^20260659188 is an apocalyptic number.

20260659188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20260659188 is an abundant number, since it is smaller than the sum of its proper divisors (23996454412).

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

20260659188 is a wasteful number, since it uses less digits than its factorization.

20260659188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77460 (or 77458 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 20260659188 in words is "twenty billion, two hundred sixty million, six hundred fifty-nine thousand, one hundred eighty-eight".