166417031868 has 24 divisors (see below), whose sum is σ = 388403137920. Its totient is φ = 55458525360.

The previous prime is 166417031861. The next prime is 166417031897. The reversal of 166417031868 is 868130714661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166417031868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166417031861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677088 + ... + 1773543.

It is an arithmetic number, because the mean of its divisors is an integer number (16183464080).

Almost surely, 2^166417031868 is an apocalyptic number.

It is an amenable number.

166417031868 is an abundant number, since it is smaller than the sum of its proper divisors (221986106052).

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

166417031868 is a wasteful number, since it uses less digits than its factorization.

166417031868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454657 (or 3454655 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 166417031868 in words is "one hundred sixty-six billion, four hundred seventeen million, thirty-one thousand, eight hundred sixty-eight".