86660000865 has 24 divisors (see below), whose sum is σ = 150244793088. Its totient is φ = 46208167200.

The previous prime is 86660000821. The next prime is 86660000873. The reversal of 86660000865 is 56800006668.

It is not a de Polignac number, because 86660000865 - 2¹⁰ = 86659999841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 86660000865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16411 + ... + 416640.

It is an arithmetic number, because the mean of its divisors is an integer number (6260199712).

Almost surely, 2^86660000865 is an apocalyptic number.

It is an amenable number.

86660000865 is a deficient number, since it is larger than the sum of its proper divisors (63584792223).

86660000865 is a wasteful number, since it uses less digits than its factorization.

86660000865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437509 (or 437506 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 86660000865 in words is "eighty-six billion, six hundred sixty million, eight hundred sixty-five", and thus it is an aban number.