669552074 has 32 divisors (see below), whose sum is σ = 1085031936. Its totient is φ = 309216960.

The previous prime is 669552067. The next prime is 669552133. The reversal of 669552074 is 470255966.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118829 + ... + 124335.

It is an arithmetic number, because the mean of its divisors is an integer number (33907248).

Almost surely, 2^669552074 is an apocalyptic number.

669552074 is a deficient number, since it is larger than the sum of its proper divisors (415479862).

669552074 is a wasteful number, since it uses less digits than its factorization.

669552074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 669552074 is about 25875.7043189166. The cubic root of 669552074 is about 874.8389685703.

The spelling of 669552074 in words is "six hundred sixty-nine million, five hundred fifty-two thousand, seventy-four".