72333311665247 has 16 divisors (see below), whose sum is σ = 78826597256160. Its totient is φ = 66096615426048.

The previous prime is 72333311665229. The next prime is 72333311665271. The reversal of 72333311665247 is 74256611333327.

It is a cyclic number.

It is not a de Polignac number, because 72333311665247 - 2²⁶ = 72333244556383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72333311665847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122829722 + ... + 123417207.

It is an arithmetic number, because the mean of its divisors is an integer number (4926662328510).

Almost surely, 2^{72333311665247} is an apocalyptic number.

72333311665247 is a deficient number, since it is larger than the sum of its proper divisors (6493285590913).

72333311665247 is a wasteful number, since it uses less digits than its factorization.

72333311665247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246247450.

The product of its digits is 11430720, while the sum is 53.

The spelling of 72333311665247 in words is "seventy-two trillion, three hundred thirty-three billion, three hundred eleven million, six hundred sixty-five thousand, two hundred forty-seven".