672106166 has 4 divisors (see below), whose sum is σ = 1008159252. Its totient is φ = 336053082.

The previous prime is 672106159. The next prime is 672106177. The reversal of 672106166 is 661601276.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168026540 + ... + 168026543.

It is an arithmetic number, because the mean of its divisors is an integer number (252039813).

Almost surely, 2^672106166 is an apocalyptic number.

672106166 is a deficient number, since it is larger than the sum of its proper divisors (336053086).

672106166 is a wasteful number, since it uses less digits than its factorization.

672106166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336053085.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 672106166 is about 25925.0104339420. The cubic root of 672106166 is about 875.9499521389.

The spelling of 672106166 in words is "six hundred seventy-two million, one hundred six thousand, one hundred sixty-six".