166634431145613 has 24 divisors (see below), whose sum is σ = 241343549909280. Its totient is φ = 110790075469920.

The previous prime is 166634431145603. The next prime is 166634431145617. The reversal of 166634431145613 is 316541134436661.

166634431145613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166634431145613 - 2²⁸ = 166634162710157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166634431145613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166634431145617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5286970 + ... + 19005812.

It is an arithmetic number, because the mean of its divisors is an integer number (10055981246220).

Almost surely, 2^{166634431145613} is an apocalyptic number.

It is an amenable number.

166634431145613 is a deficient number, since it is larger than the sum of its proper divisors (74709118763667).

166634431145613 is a wasteful number, since it uses less digits than its factorization.

166634431145613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13722489 (or 13722486 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 54.

The spelling of 166634431145613 in words is "one hundred sixty-six trillion, six hundred thirty-four billion, four hundred thirty-one million, one hundred forty-five thousand, six hundred thirteen".