86665912704 has 144 divisors (see below), whose sum is σ = 290107146420. Its totient is φ = 24761673216.

The previous prime is 86665912691. The next prime is 86665912733. The reversal of 86665912704 is 40721956668.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 711214 + ... + 824109.

Almost surely, 2^86665912704 is an apocalyptic number.

86665912704 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

86665912704 is an abundant number, since it is smaller than the sum of its proper divisors (203441233716).

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

86665912704 is a wasteful number, since it uses less digits than its factorization.

86665912704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535357 (or 1535335 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 86665912704 in words is "eighty-six billion, six hundred sixty-five million, nine hundred twelve thousand, seven hundred four".