166313032161 has 8 divisors (see below), whose sum is σ = 223443463584. Its totient is φ = 110028977760.

The previous prime is 166313032157. The next prime is 166313032201. The reversal of 166313032161 is 161230313661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166313032161 - 2² = 166313032157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166313030161) 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, 211593796 + ... + 211594581.

It is an arithmetic number, because the mean of its divisors is an integer number (27930432948).

Almost surely, 2^166313032161 is an apocalyptic number.

It is an amenable number.

166313032161 is a deficient number, since it is larger than the sum of its proper divisors (57130431423).

166313032161 is a wasteful number, since it uses less digits than its factorization.

166313032161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423188511.

The product of its (nonzero) digits is 11664, while the sum is 33.

The spelling of 166313032161 in words is "one hundred sixty-six billion, three hundred thirteen million, thirty-two thousand, one hundred sixty-one".