720064936656 has 120 divisors (see below), whose sum is σ = 2250573488800. Its totient is φ = 221558426496.

The previous prime is 720064936631. The next prime is 720064936663. The reversal of 720064936656 is 656639460027.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7072606 + ... + 7173693.

Almost surely, 2^720064936656 is an apocalyptic number.

It is an amenable number.

720064936656 is an abundant number, since it is smaller than the sum of its proper divisors (1530508552144).

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

720064936656 is a wasteful number, since it uses less digits than its factorization.

720064936656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14246335 (or 14246317 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 720064936656 in words is "seven hundred twenty billion, sixty-four million, nine hundred thirty-six thousand, six hundred fifty-six".