166968465156 has 120 divisors (see below), whose sum is σ = 439922747264. Its totient is φ = 55219475520.

The previous prime is 166968465143. The next prime is 166968465173. The reversal of 166968465156 is 651564869661.

166968465156 is a `hidden beast` number, since 1 + 6 + 69 + 68 + 465 + 1 + 56 = 666.

It is a super-2 number, since 2×166968465156² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166968465093 and 166968465102.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 34906341 + ... + 34911123.

Almost surely, 2^166968465156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166968465156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219961373632).

166968465156 is an abundant number, since it is smaller than the sum of its proper divisors (272954282108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166968465156 is a wasteful number, since it uses less digits than its factorization.

166968465156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623 (or 5612 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 63.

The spelling of 166968465156 in words is "one hundred sixty-six billion, nine hundred sixty-eight million, four hundred sixty-five thousand, one hundred fifty-six".