720716102500 has 45 divisors (see below), whose sum is σ = 1576154802607. Its totient is φ = 288269462000.

The previous prime is 720716102489. The next prime is 720716102539. The reversal of 720716102500 is 5201617027.

The square root of 720716102500 is 848950.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 56504142436 + 664211960064 = 237706^2 + 814992^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 42439011 + ... + 42455989.

Almost surely, 2^720716102500 is an apocalyptic number.

720716102500 is the 848950-th square number.

It is an amenable number.

720716102500 is an abundant number, since it is smaller than the sum of its proper divisors (855438700107).

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

720716102500 is an frugal number, since it uses more digits than its factorization.

720716102500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33982 (or 16986 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

Adding to 720716102500 its reverse (5201617027), we get a palindrome (725917719527).

The spelling of 720716102500 in words is "seven hundred twenty billion, seven hundred sixteen million, one hundred two thousand, five hundred".