72326161612 has 12 divisors (see below), whose sum is σ = 126575081136. Its totient is φ = 36161852720.

The previous prime is 72326161517. The next prime is 72326161613. The reversal of 72326161612 is 21616162327.

It is not an unprimeable number, because it can be changed into a prime (72326161613) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 167464 + ... + 415567.

It is an arithmetic number, because the mean of its divisors is an integer number (10547923428).

Almost surely, 2^72326161612 is an apocalyptic number.

It is an amenable number.

72326161612 is a deficient number, since it is larger than the sum of its proper divisors (54248919524).

72326161612 is a wasteful number, since it uses less digits than its factorization.

72326161612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614048 (or 614046 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The spelling of 72326161612 in words is "seventy-two billion, three hundred twenty-six million, one hundred sixty-one thousand, six hundred twelve".