166601902 has 8 divisors (see below), whose sum is σ = 251870976. Its totient is φ = 82644912.

The previous prime is 166601893. The next prime is 166601917. The reversal of 166601902 is 209106661.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327703 + ... + 328210.

It is an arithmetic number, because the mean of its divisors is an integer number (31483872).

Almost surely, 2^166601902 is an apocalyptic number.

166601902 is a deficient number, since it is larger than the sum of its proper divisors (85269074).

166601902 is a wasteful number, since it uses less digits than its factorization.

166601902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656042.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 166601902 is about 12907.4359188802. The cubic root of 166601902 is about 550.2499161747.

The spelling of 166601902 in words is "one hundred sixty-six million, six hundred one thousand, nine hundred two".