721536160080 has 40 divisors (see below), whose sum is σ = 2236762096992. Its totient is φ = 192409642624.

The previous prime is 721536160069. The next prime is 721536160117. The reversal of 721536160080 is 80061635127.

721536160080 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×721536160080² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 1503200094 + ... + 1503200573.

Almost surely, 2^721536160080 is an apocalyptic number.

It is an amenable number.

721536160080 is an abundant number, since it is smaller than the sum of its proper divisors (1515225936912).

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

721536160080 is a wasteful number, since it uses less digits than its factorization.

721536160080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006400683 (or 3006400677 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 721536160080 in words is "seven hundred twenty-one billion, five hundred thirty-six million, one hundred sixty thousand, eighty".