72240117020 has 12 divisors (see below), whose sum is σ = 151704245784. Its totient is φ = 28896046800.

The previous prime is 72240116989. The next prime is 72240117031. The reversal of 72240117020 is 2071104227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806002906 + ... + 1806002945.

It is an arithmetic number, because the mean of its divisors is an integer number (12642020482).

Almost surely, 2^72240117020 is an apocalyptic number.

It is an amenable number.

72240117020 is an abundant number, since it is smaller than the sum of its proper divisors (79464128764).

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

72240117020 is a wasteful number, since it uses less digits than its factorization.

72240117020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612005860 (or 3612005858 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The spelling of 72240117020 in words is "seventy-two billion, two hundred forty million, one hundred seventeen thousand, twenty".