72243176265 has 160 divisors (see below), whose sum is σ = 149223782400. Its totient is φ = 33138823680.

The previous prime is 72243176233. The next prime is 72243176267. The reversal of 72243176265 is 56267134227.

72243176265 is a `hidden beast` number, since 7 + 2 + 2 + 4 + 3 + 17 + 626 + 5 = 666.

It is not a de Polignac number, because 72243176265 - 2⁵ = 72243176233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72243176265.

It is not an unprimeable number, because it can be changed into a prime (72243176267) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6096216 + ... + 6108054.

It is an arithmetic number, because the mean of its divisors is an integer number (932648640).

Almost surely, 2^72243176265 is an apocalyptic number.

It is an amenable number.

72243176265 is an abundant number, since it is smaller than the sum of its proper divisors (76980606135).

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

72243176265 is a wasteful number, since it uses less digits than its factorization.

72243176265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11949 (or 11940 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The spelling of 72243176265 in words is "seventy-two billion, two hundred forty-three million, one hundred seventy-six thousand, two hundred sixty-five".