668500124 has 12 divisors (see below), whose sum is σ = 1174040448. Its totient is φ = 333060000.

The previous prime is 668500081. The next prime is 668500171. The reversal of 668500124 is 421005866.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 296252 + ... + 298499.

It is an arithmetic number, because the mean of its divisors is an integer number (97836704).

Almost surely, 2^668500124 is an apocalyptic number.

It is an amenable number.

668500124 is a deficient number, since it is larger than the sum of its proper divisors (505540324).

668500124 is a wasteful number, since it uses less digits than its factorization.

668500124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595036 (or 595034 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 668500124 is about 25855.3693456504. The cubic root of 668500124 is about 874.3805679611.

The spelling of 668500124 in words is "six hundred sixty-eight million, five hundred thousand, one hundred twenty-four".