722133664 has 24 divisors (see below), whose sum is σ = 1624801248. Its totient is φ = 309485760.

The previous prime is 722133661. The next prime is 722133679. The reversal of 722133664 is 466331227.

It is not an unprimeable number, because it can be changed into a prime (722133661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611682 + ... + 1612129.

It is an arithmetic number, because the mean of its divisors is an integer number (67700052).

Almost surely, 2^722133664 is an apocalyptic number.

It is an amenable number.

722133664 is an abundant number, since it is smaller than the sum of its proper divisors (902667584).

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

722133664 is a wasteful number, since it uses less digits than its factorization.

722133664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223828 (or 3223820 counting only the distinct ones).

The product of its digits is 36288, while the sum is 34.

The square root of 722133664 is about 26872.5447994789. The cubic root of 722133664 is about 897.1654291511.

The spelling of 722133664 in words is "seven hundred twenty-two million, one hundred thirty-three thousand, six hundred sixty-four".