720320064 has 56 divisors (see below), whose sum is σ = 1908108960. Its totient is φ = 239821824.

The previous prime is 720320053. The next prime is 720320071. The reversal of 720320064 is 460023027.

720320064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215107 + ... + 218429.

Almost surely, 2^720320064 is an apocalyptic number.

It is an amenable number.

720320064 is an abundant number, since it is smaller than the sum of its proper divisors (1187788896).

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

720320064 is a wasteful number, since it uses less digits than its factorization.

720320064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467 (or 4457 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 720320064 is about 26838.7791078506. The cubic root of 720320064 is about 896.4137385563.

The spelling of 720320064 in words is "seven hundred twenty million, three hundred twenty thousand, sixty-four".