166485414854 has 32 divisors (see below), whose sum is σ = 284306893056. Its totient is φ = 72376967520.

The previous prime is 166485414839. The next prime is 166485414869. The reversal of 166485414854 is 458414584661.

It is an interprime number because it is at equal distance from previous prime (166485414839) and next prime (166485414869).

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 166485414854.

It is a congruent number.

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, 8631329 + ... + 8650595.

It is an arithmetic number, because the mean of its divisors is an integer number (8884590408).

Almost surely, 2^166485414854 is an apocalyptic number.

166485414854 is a deficient number, since it is larger than the sum of its proper divisors (117821478202).

166485414854 is a wasteful number, since it uses less digits than its factorization.

166485414854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36380.

The product of its digits is 14745600, while the sum is 56.

The spelling of 166485414854 in words is "one hundred sixty-six billion, four hundred eighty-five million, four hundred fourteen thousand, eight hundred fifty-four".