166071521610512 has 80 divisors (see below), whose sum is σ = 368196486095232. Its totient is φ = 71083191429120.

The previous prime is 166071521610457. The next prime is 166071521610523. The reversal of 166071521610512 is 215016125170661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2600646488 + ... + 2600710344.

Almost surely, 2^{166071521610512} is an apocalyptic number.

It is an amenable number.

166071521610512 is an abundant number, since it is smaller than the sum of its proper divisors (202124964484720).

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

166071521610512 is a wasteful number, since it uses less digits than its factorization.

166071521610512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92976 (or 92970 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 166071521610512 in words is "one hundred sixty-six trillion, seventy-one billion, five hundred twenty-one million, six hundred ten thousand, five hundred twelve".