668714524 has 6 divisors (see below), whose sum is σ = 1170250424. Its totient is φ = 334357260.

The previous prime is 668714503. The next prime is 668714537. The reversal of 668714524 is 425417866.

It is a super-2 number, since 2×668714524² = 894358229217093152, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 83589312 + ... + 83589319.

Almost surely, 2^668714524 is an apocalyptic number.

It is an amenable number.

668714524 is a deficient number, since it is larger than the sum of its proper divisors (501535900).

668714524 is a wasteful number, since it uses less digits than its factorization.

668714524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167178635 (or 167178633 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 668714524 is about 25859.5151540009. The cubic root of 668714524 is about 874.4740344887.

The spelling of 668714524 in words is "six hundred sixty-eight million, seven hundred fourteen thousand, five hundred twenty-four".