166171601167 has 8 divisors (see below), whose sum is σ = 195222580560. Its totient is φ = 139444700160.

The previous prime is 166171601143. The next prime is 166171601179. The reversal of 166171601167 is 761106171661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166171601167 is a prime.

It is a super-2 number, since 2×166171601167² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166171605167) 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, 581019442 + ... + 581019727.

It is an arithmetic number, because the mean of its divisors is an integer number (24402822570).

Almost surely, 2^166171601167 is an apocalyptic number.

166171601167 is a deficient number, since it is larger than the sum of its proper divisors (29050979393).

166171601167 is a wasteful number, since it uses less digits than its factorization.

166171601167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162039193.

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 166171601167 in words is "one hundred sixty-six billion, one hundred seventy-one million, six hundred one thousand, one hundred sixty-seven".