166492861 has 8 divisors (see below), whose sum is σ = 170644320. Its totient is φ = 162354192.

The previous prime is 166492831. The next prime is 166492871. The reversal of 166492861 is 168294661.

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

It is a cyclic number.

It is not a de Polignac number, because 166492861 - 2⁵ = 166492829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166492811) 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, 26535 + ... + 32203.

It is an arithmetic number, because the mean of its divisors is an integer number (21330540).

Almost surely, 2^166492861 is an apocalyptic number.

It is an amenable number.

166492861 is a deficient number, since it is larger than the sum of its proper divisors (4151459).

166492861 is an equidigital number, since it uses as much as digits as its factorization.

166492861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6395.

The product of its digits is 124416, while the sum is 43.

The square root of 166492861 is about 12903.2112669676. The cubic root of 166492861 is about 550.1298437243.

The spelling of 166492861 in words is "one hundred sixty-six million, four hundred ninety-two thousand, eight hundred sixty-one".