668373124 has 6 divisors (see below), whose sum is σ = 1169652974. Its totient is φ = 334186560.

The previous prime is 668373107. The next prime is 668373131. The reversal of 668373124 is 421373866.

It can be written as a sum of positive squares in only one way, i.e., 645160000 + 23213124 = 25400^2 + 4818^2 .

It is a super-4 number, since 4×668373124⁴ (a number of 36 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83546637 + ... + 83546644.

Almost surely, 2^668373124 is an apocalyptic number.

It is an amenable number.

668373124 is a deficient number, since it is larger than the sum of its proper divisors (501279850).

668373124 is a wasteful number, since it uses less digits than its factorization.

668373124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167093285 (or 167093283 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 668373124 is about 25852.9132594375. The cubic root of 668373124 is about 874.3251935684.

The spelling of 668373124 in words is "six hundred sixty-eight million, three hundred seventy-three thousand, one hundred twenty-four".