166166923119 has 16 divisors (see below), whose sum is σ = 223779139584. Its totient is φ = 109671818400.

The previous prime is 166166923099. The next prime is 166166923121. The reversal of 166166923119 is 911329661661.

It is not a de Polignac number, because 166166923119 - 2¹¹ = 166166921071 is a prime.

It is a super-2 number, since 2×166166923119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166166923189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565047 + ... + 807224.

It is an arithmetic number, because the mean of its divisors is an integer number (13986196224).

Almost surely, 2^166166923119 is an apocalyptic number.

166166923119 is a deficient number, since it is larger than the sum of its proper divisors (57612216465).

166166923119 is a wasteful number, since it uses less digits than its factorization.

166166923119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372678.

The product of its digits is 629856, while the sum is 51.

The spelling of 166166923119 in words is "one hundred sixty-six billion, one hundred sixty-six million, nine hundred twenty-three thousand, one hundred nineteen".