667674052 has 24 divisors (see below), whose sum is σ = 1183400960. Its totient is φ = 329585760.

The previous prime is 667674037. The next prime is 667674101. The reversal of 667674052 is 250476766.

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, 104074 + ... + 110302.

Almost surely, 2^667674052 is an apocalyptic number.

It is an amenable number.

667674052 is a deficient number, since it is larger than the sum of its proper divisors (515726908).

667674052 is a wasteful number, since it uses less digits than its factorization.

667674052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571 (or 6569 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 667674052 is about 25839.3895438727. The cubic root of 667674052 is about 874.0202593631.

The spelling of 667674052 in words is "six hundred sixty-seven million, six hundred seventy-four thousand, fifty-two".