720695936896 has 64 divisors (see below), whose sum is σ = 1613430997920. Its totient is φ = 318166751232.

The previous prime is 720695936833. The next prime is 720695936903. The reversal of 720695936896 is 698639596027.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×720695936896² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9377175 + ... + 9453718.

Almost surely, 2^720695936896 is an apocalyptic number.

It is an amenable number.

720695936896 is an abundant number, since it is smaller than the sum of its proper divisors (892735061024).

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

720695936896 is a wasteful number, since it uses less digits than its factorization.

720695936896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18830943 (or 18830931 counting only the distinct ones).

The product of its (nonzero) digits is 264539520, while the sum is 70.

The spelling of 720695936896 in words is "seven hundred twenty billion, six hundred ninety-five million, nine hundred thirty-six thousand, eight hundred ninety-six".