18665695265975 has 12 divisors (see below), whose sum is σ = 23266642565760. Its totient is φ = 14854375286400.

The previous prime is 18665695265969. The next prime is 18665695265983. The reversal of 18665695265975 is 57956259656681.

It is not a de Polignac number, because 18665695265975 - 2²⁴ = 18665678488759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18665695265975.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1954518290 + ... + 1954527839.

It is an arithmetic number, because the mean of its divisors is an integer number (1938886880480).

Almost surely, 2^{18665695265975} is an apocalyptic number.

18665695265975 is a deficient number, since it is larger than the sum of its proper divisors (4600947299785).

18665695265975 is a wasteful number, since it uses less digits than its factorization.

18665695265975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909046330 (or 3909046325 counting only the distinct ones).

The product of its digits is 7348320000, while the sum is 80.

The spelling of 18665695265975 in words is "eighteen trillion, six hundred sixty-five billion, six hundred ninety-five million, two hundred sixty-five thousand, nine hundred seventy-five".