72052205715720 has 96 divisors (see below), whose sum is σ = 234170720709120. Its totient is φ = 19213835195520.

The previous prime is 72052205715713. The next prime is 72052205715757. The reversal of 72052205715720 is 2751750225027.

It is a happy number.

72052205715720 is a `hidden beast` number, since 7 + 2 + 0 + 5 + 2 + 2 + 0 + 5 + 71 + 572 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145434267 + ... + 145928853.

It is an arithmetic number, because the mean of its divisors is an integer number (2439278340720).

Almost surely, 2^{72052205715720} is an apocalyptic number.

It is an amenable number.

72052205715720 is an abundant number, since it is smaller than the sum of its proper divisors (162118514993400).

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

72052205715720 is a wasteful number, since it uses less digits than its factorization.

72052205715720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899275 (or 899268 counting only the distinct ones).

The product of its (nonzero) digits is 686000, while the sum is 45.

The spelling of 72052205715720 in words is "seventy-two trillion, fifty-two billion, two hundred five million, seven hundred fifteen thousand, seven hundred twenty".