7272522126655 has 64 divisors (see below), whose sum is σ = 9509463089280. Its totient is φ = 5317598822400.

The previous prime is 7272522126503. The next prime is 7272522126703. The reversal of 7272522126655 is 5566212252727.

It is a de Polignac number, because none of the positive numbers 2^k-7272522126655 is a prime.

It is a super-2 number, since 2×7272522126655² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1140069256 + ... + 1140075634.

It is an arithmetic number, because the mean of its divisors is an integer number (148585360770).

Almost surely, 2^{7272522126655} is an apocalyptic number.

7272522126655 is a deficient number, since it is larger than the sum of its proper divisors (2236940962625).

7272522126655 is a wasteful number, since it uses less digits than its factorization.

7272522126655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7900.

The product of its digits is 7056000, while the sum is 52.

The spelling of 7272522126655 in words is "seven trillion, two hundred seventy-two billion, five hundred twenty-two million, one hundred twenty-six thousand, six hundred fifty-five".