166004432632812 has 12 divisors (see below), whose sum is σ = 387343676143256. Its totient is φ = 55334810877600.

The previous prime is 166004432632811. The next prime is 166004432632817. The reversal of 166004432632812 is 218236234400661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (166004432632811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6916851359689 + ... + 6916851359712.

Almost surely, 2^{166004432632812} is an apocalyptic number.

166004432632812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166004432632812 is an abundant number, since it is smaller than the sum of its proper divisors (221339243510444).

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

166004432632812 is a wasteful number, since it uses less digits than its factorization.

166004432632812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13833702719408 (or 13833702719406 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 166004432632812 in words is "one hundred sixty-six trillion, four billion, four hundred thirty-two million, six hundred thirty-two thousand, eight hundred twelve".