669273166 has 4 divisors (see below), whose sum is σ = 1003909752. Its totient is φ = 334636582.

The previous prime is 669273103. The next prime is 669273179. The reversal of 669273166 is 661372966.

669273166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 167318290 + ... + 167318293.

It is an arithmetic number, because the mean of its divisors is an integer number (250977438).

Almost surely, 2^669273166 is an apocalyptic number.

669273166 is a deficient number, since it is larger than the sum of its proper divisors (334636586).

669273166 is a wasteful number, since it uses less digits than its factorization.

669273166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334636585.

The product of its digits is 489888, while the sum is 46.

The square root of 669273166 is about 25870.3143776801. The cubic root of 669273166 is about 874.7174776590.

The spelling of 669273166 in words is "six hundred sixty-nine million, two hundred seventy-three thousand, one hundred sixty-six".