669770068 has 24 divisors (see below), whose sum is σ = 1279635840. Its totient is φ = 304206720.

The previous prime is 669770039. The next prime is 669770071. The reversal of 669770068 is 860077966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60405 + ... + 70627.

It is an arithmetic number, because the mean of its divisors is an integer number (53318160).

Almost surely, 2^669770068 is an apocalyptic number.

It is an amenable number.

669770068 is a deficient number, since it is larger than the sum of its proper divisors (609865772).

669770068 is a wasteful number, since it uses less digits than its factorization.

669770068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11727 (or 11725 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 669770068 is about 25879.9163058925. The cubic root of 669770068 is about 874.9339021635.

The spelling of 669770068 in words is "six hundred sixty-nine million, seven hundred seventy thousand, sixty-eight".