166601373 has 8 divisors (see below), whose sum is σ = 222938208. Its totient is φ = 110666064.

The previous prime is 166601363. The next prime is 166601381. The reversal of 166601373 is 373106661.

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

It is not a de Polignac number, because 166601373 - 2⁵ = 166601341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166601353) 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, 99411 + ... + 101072.

It is an arithmetic number, because the mean of its divisors is an integer number (27867276).

Almost surely, 2^166601373 is an apocalyptic number.

It is an amenable number.

166601373 is a deficient number, since it is larger than the sum of its proper divisors (56336835).

166601373 is a wasteful number, since it uses less digits than its factorization.

166601373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200763.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 166601373 is about 12907.4154268002. The cubic root of 166601373 is about 550.2493337834.

The spelling of 166601373 in words is "one hundred sixty-six million, six hundred one thousand, three hundred seventy-three".