7266236521161 has 16 divisors (see below), whose sum is σ = 10115790935040. Its totient is φ = 4630680080400.

The previous prime is 7266236521139. The next prime is 7266236521171. The reversal of 7266236521161 is 1611256326627.

It is not a de Polignac number, because 7266236521161 - 2¹⁴ = 7266236504777 is a prime.

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 7266236521161.

It is not an unprimeable number, because it can be changed into a prime (7266236521171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32410765 + ... + 32634186.

It is an arithmetic number, because the mean of its divisors is an integer number (632236933440).

Almost surely, 2^{7266236521161} is an apocalyptic number.

It is an amenable number.

7266236521161 is a deficient number, since it is larger than the sum of its proper divisors (2849554413879).

7266236521161 is a wasteful number, since it uses less digits than its factorization.

7266236521161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65046596.

The product of its digits is 1088640, while the sum is 48.

The spelling of 7266236521161 in words is "seven trillion, two hundred sixty-six billion, two hundred thirty-six million, five hundred twenty-one thousand, one hundred sixty-one".