166653534040564 has 24 divisors (see below), whose sum is σ = 293365794721608. Its totient is φ = 82834854789120.

The previous prime is 166653534040523. The next prime is 166653534040579. The reversal of 166653534040564 is 465040435356661.

It can be written as a sum of positive squares in 4 ways, for example, as 48179452264164 + 118474081776400 = 6941142^2 + 10884580^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166653534040499 and 166653534040508.

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 7 ways as a sum of consecutive naturals, for example, 9308877 + ... + 20492980.

It is an arithmetic number, because the mean of its divisors is an integer number (12223574780067).

Almost surely, 2^{166653534040564} is an apocalyptic number.

It is an amenable number.

166653534040564 is a deficient number, since it is larger than the sum of its proper divisors (126712260681044).

166653534040564 is a wasteful number, since it uses less digits than its factorization.

166653534040564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29810115 (or 29810113 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 58.

The spelling of 166653534040564 in words is "one hundred sixty-six trillion, six hundred fifty-three billion, five hundred thirty-four million, forty thousand, five hundred sixty-four".