720652516 has 6 divisors (see below), whose sum is σ = 1261141910. Its totient is φ = 360326256.

The previous prime is 720652511. The next prime is 720652553. The reversal of 720652516 is 615256027.

It can be written as a sum of positive squares in only one way, i.e., 526886116 + 193766400 = 22954^2 + 13920^2 .

It is not an unprimeable number, because it can be changed into a prime (720652511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90081561 + ... + 90081568.

Almost surely, 2^720652516 is an apocalyptic number.

It is an amenable number.

720652516 is a deficient number, since it is larger than the sum of its proper divisors (540489394).

720652516 is a wasteful number, since it uses less digits than its factorization.

720652516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180163133 (or 180163131 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 720652516 is about 26844.9718941928. The cubic root of 720652516 is about 896.5516257349.

The spelling of 720652516 in words is "seven hundred twenty million, six hundred fifty-two thousand, five hundred sixteen".