75668664 has 16 divisors (see below), whose sum is σ = 189171720. Its totient is φ = 25222880.

The previous prime is 75668653. The next prime is 75668687. The reversal of 75668664 is 46686657.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576407 + ... + 1576454.

Almost surely, 2^75668664 is an apocalyptic number.

It is an amenable number.

75668664 is an abundant number, since it is smaller than the sum of its proper divisors (113503056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75668664 is a wasteful number, since it uses less digits than its factorization.

75668664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152870 (or 3152866 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 75668664 is about 8698.7737066784. The cubic root of 75668664 is about 422.9658999276.

The spelling of 75668664 in words is "seventy-five million, six hundred sixty-eight thousand, six hundred sixty-four".