88640662020 has 24 divisors (see below), whose sum is σ = 248193853824. Its totient is φ = 23637509856.

The previous prime is 88640661833. The next prime is 88640662043. The reversal of 88640662020 is 2026604688.

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, 738672124 + ... + 738672243.

It is an arithmetic number, because the mean of its divisors is an integer number (10341410576).

Almost surely, 2^88640662020 is an apocalyptic number.

It is an amenable number.

88640662020 is an abundant number, since it is smaller than the sum of its proper divisors (159553191804).

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

88640662020 is a wasteful number, since it uses less digits than its factorization.

88640662020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477344379 (or 1477344377 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 88640662020 in words is "eighty-eight billion, six hundred forty million, six hundred sixty-two thousand, twenty".