722165264 has 10 divisors (see below), whose sum is σ = 1399195230. Its totient is φ = 361082624.

The previous prime is 722165261. The next prime is 722165273. The reversal of 722165264 is 462561227.

It can be written as a sum of positive squares in only one way, i.e., 520752400 + 201412864 = 22820^2 + 14192^2 .

It is not an unprimeable number, because it can be changed into a prime (722165261) 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, 22567649 + ... + 22567680.

It is an arithmetic number, because the mean of its divisors is an integer number (139919523).

Almost surely, 2^722165264 is an apocalyptic number.

It is an amenable number.

722165264 is a deficient number, since it is larger than the sum of its proper divisors (677029966).

722165264 is a wasteful number, since it uses less digits than its factorization.

722165264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45135337 (or 45135331 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 722165264 is about 26873.1327537375. The cubic root of 722165264 is about 897.1785153775.

The spelling of 722165264 in words is "seven hundred twenty-two million, one hundred sixty-five thousand, two hundred sixty-four".