72565701113722 has 64 divisors (see below), whose sum is σ = 118959496819200. Its totient is φ = 33083148833280.

The previous prime is 72565701113701. The next prime is 72565701113753. The reversal of 72565701113722 is 22731110756527.

It is a super-2 number, since 2×72565701113722² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515571054 + ... + 515711782.

It is an arithmetic number, because the mean of its divisors is an integer number (1858742137800).

Almost surely, 2^{72565701113722} is an apocalyptic number.

72565701113722 is a deficient number, since it is larger than the sum of its proper divisors (46393795705478).

72565701113722 is a wasteful number, since it uses less digits than its factorization.

72565701113722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145591.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 72565701113722 in words is "seventy-two trillion, five hundred sixty-five billion, seven hundred one million, one hundred thirteen thousand, seven hundred twenty-two".