720366667688 has 16 divisors (see below), whose sum is σ = 1430139708180. Its totient is φ = 338996078848.

The previous prime is 720366667681. The next prime is 720366667693. The reversal of 720366667688 is 886766663027.

720366667688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 699929677924 + 20436989764 = 836618^2 + 142958^2 .

It is not an unprimeable number, because it can be changed into a prime (720366667681) 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, 2648406731 + ... + 2648407002.

Almost surely, 2^720366667688 is an apocalyptic number.

It is an amenable number.

720366667688 is a deficient number, since it is larger than the sum of its proper divisors (709773040492).

720366667688 is a wasteful number, since it uses less digits than its factorization.

720366667688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296813756 (or 5296813752 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 65.

The spelling of 720366667688 in words is "seven hundred twenty billion, three hundred sixty-six million, six hundred sixty-seven thousand, six hundred eighty-eight".