72275599557226 has 16 divisors (see below), whose sum is σ = 116754348400200. Its totient is φ = 33357552795648.

The previous prime is 72275599557211. The next prime is 72275599557247. The reversal of 72275599557226 is 62275599557227.

It can be written as a sum of positive squares in 4 ways, for example, as 62402084451001 + 9873515106225 = 7899499^2 + 3142215^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15214231 + ... + 19391338.

Almost surely, 2^{72275599557226} is an apocalyptic number.

72275599557226 is a deficient number, since it is larger than the sum of its proper divisors (44478748842974).

72275599557226 is a wasteful number, since it uses less digits than its factorization.

72275599557226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34685913.

The product of its digits is 1666980000, while the sum is 73.

Subtracting from 72275599557226 its reverse (62275599557227), we obtain a palindrome (9999999999999).

The spelling of 72275599557226 in words is "seventy-two trillion, two hundred seventy-five billion, five hundred ninety-nine million, five hundred fifty-seven thousand, two hundred twenty-six".