386423705665 has 16 divisors (see below), whose sum is σ = 470663593920. Its totient is φ = 304502869440.

The previous prime is 386423705659. The next prime is 386423705683. The reversal of 386423705665 is 566507324683.

It is not a de Polignac number, because 386423705665 - 2⁷ = 386423705537 is a prime.

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, 5802255 + ... + 5868475.

It is an arithmetic number, because the mean of its divisors is an integer number (29416474620).

Almost surely, 2^386423705665 is an apocalyptic number.

It is an amenable number.

386423705665 is a deficient number, since it is larger than the sum of its proper divisors (84239888255).

386423705665 is a wasteful number, since it uses less digits than its factorization.

386423705665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83712.

The product of its (nonzero) digits is 21772800, while the sum is 55.

The spelling of 386423705665 in words is "three hundred eighty-six billion, four hundred twenty-three million, seven hundred five thousand, six hundred sixty-five".