72320330322232 has 16 divisors (see below), whose sum is σ = 135629293694400. Its totient is φ = 36152518670400.

The previous prime is 72320330322203. The next prime is 72320330322257. The reversal of 72320330322232 is 23222303302327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955771144 + ... + 955846807.

It is an arithmetic number, because the mean of its divisors is an integer number (8476830855900).

Almost surely, 2^{72320330322232} is an apocalyptic number.

It is an amenable number.

72320330322232 is a deficient number, since it is larger than the sum of its proper divisors (63308963372168).

72320330322232 is a wasteful number, since it uses less digits than its factorization.

72320330322232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911622686 (or 1911622682 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 34.

Adding to 72320330322232 its reverse (23222303302327), we get a palindrome (95542633624559).

The spelling of 72320330322232 in words is "seventy-two trillion, three hundred twenty billion, three hundred thirty million, three hundred twenty-two thousand, two hundred thirty-two".