667548052 has 12 divisors (see below), whose sum is σ = 1229693920. Its totient is φ = 316206936.

The previous prime is 667548031. The next prime is 667548103. The reversal of 667548052 is 250845766.

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 3 ways as a sum of consecutive naturals, for example, 4391688 + ... + 4391839.

Almost surely, 2^667548052 is an apocalyptic number.

It is an amenable number.

667548052 is a deficient number, since it is larger than the sum of its proper divisors (562145868).

667548052 is a wasteful number, since it uses less digits than its factorization.

667548052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8783550 (or 8783548 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 667548052 is about 25836.9512907386. The cubic root of 667548052 is about 873.9652757073.

The spelling of 667548052 in words is "six hundred sixty-seven million, five hundred forty-eight thousand, fifty-two".