166347448976 has 40 divisors (see below), whose sum is σ = 323469129984. Its totient is φ = 82871752320.

The previous prime is 166347448961. The next prime is 166347448987. The reversal of 166347448976 is 679844743661.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18764321 + ... + 18773183.

Almost surely, 2^166347448976 is an apocalyptic number.

166347448976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166347448976 is a deficient number, since it is larger than the sum of its proper divisors (157121681008).

166347448976 is a wasteful number, since it uses less digits than its factorization.

166347448976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12999 (or 12993 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 65.

The spelling of 166347448976 in words is "one hundred sixty-six billion, three hundred forty-seven million, four hundred forty-eight thousand, nine hundred seventy-six".