720480660 has 48 divisors (see below), whose sum is σ = 2020200000. Its totient is φ = 191856384.

The previous prime is 720480653. The next prime is 720480667. The reversal of 720480660 is 66084027.

720480660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (720480653) and next prime (720480667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720480667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36216 + ... + 52464.

It is an arithmetic number, because the mean of its divisors is an integer number (42087500).

Almost surely, 2^720480660 is an apocalyptic number.

It is an amenable number.

720480660 is an abundant number, since it is smaller than the sum of its proper divisors (1299719340).

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

720480660 is a wasteful number, since it uses less digits than its factorization.

720480660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17000 (or 16998 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 720480660 is about 26841.7708059658. The cubic root of 720480660 is about 896.4803523532.

The spelling of 720480660 in words is "seven hundred twenty million, four hundred eighty thousand, six hundred sixty".