720522356659 has 12 divisors (see below), whose sum is σ = 860811598704. Its totient is φ = 600898952304.

The previous prime is 720522356621. The next prime is 720522356683. The reversal of 720522356659 is 956653225027.

It is a de Polignac number, because none of the positive numbers 2^k-720522356659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720520356659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198708159 + ... + 198711784.

It is an arithmetic number, because the mean of its divisors is an integer number (71734299892).

Almost surely, 2^720522356659 is an apocalyptic number.

720522356659 is a deficient number, since it is larger than the sum of its proper divisors (140289242045).

720522356659 is a wasteful number, since it uses less digits than its factorization.

720522356659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397419994 (or 397419987 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 52.

The spelling of 720522356659 in words is "seven hundred twenty billion, five hundred twenty-two million, three hundred fifty-six thousand, six hundred fifty-nine".