724166668 has 6 divisors (see below), whose sum is σ = 1267291676. Its totient is φ = 362083332.

The previous prime is 724166657. The next prime is 724166669. The reversal of 724166668 is 866661427.

It is not an unprimeable number, because it can be changed into a prime (724166669) by changing a digit.

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, 90520830 + ... + 90520837.

Almost surely, 2^724166668 is an apocalyptic number.

It is an amenable number.

724166668 is a deficient number, since it is larger than the sum of its proper divisors (543125008).

724166668 is a wasteful number, since it uses less digits than its factorization.

724166668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181041671 (or 181041669 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 724166668 is about 26910.3449996465. The cubic root of 724166668 is about 898.0065624195.

The spelling of 724166668 in words is "seven hundred twenty-four million, one hundred sixty-six thousand, six hundred sixty-eight".