166601160066642 has 32 divisors (see below), whose sum is σ = 383082906995712. Its totient is φ = 47315299520784.

The previous prime is 166601160066629. The next prime is 166601160066659. The reversal of 166601160066642 is 246660061106661.

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, 11876323188 + ... + 11876337215.

It is an arithmetic number, because the mean of its divisors is an integer number (11971340843616).

Almost surely, 2^{166601160066642} is an apocalyptic number.

166601160066642 is an abundant number, since it is smaller than the sum of its proper divisors (216481746929070).

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

166601160066642 is a wasteful number, since it uses less digits than its factorization.

166601160066642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23752660582.

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 166601160066642 in words is "one hundred sixty-six trillion, six hundred one billion, one hundred sixty million, sixty-six thousand, six hundred forty-two".