22652641261 has 4 divisors (see below), whose sum is σ = 22740784092. Its totient is φ = 22564498432.

The previous prime is 22652641247. The next prime is 22652641303. The reversal of 22652641261 is 16214625622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22329324900 + 323316361 = 149430^2 + 17981^2 .

It is a cyclic number.

It is not a de Polignac number, because 22652641261 - 2⁵ = 22652641229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22652641261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22652642261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44071030 + ... + 44071543.

It is an arithmetic number, because the mean of its divisors is an integer number (5685196023).

Almost surely, 2^22652641261 is an apocalyptic number.

It is an amenable number.

22652641261 is a deficient number, since it is larger than the sum of its proper divisors (88142831).

22652641261 is an equidigital number, since it uses as much as digits as its factorization.

22652641261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88142830.

The product of its digits is 69120, while the sum is 37.

The spelling of 22652641261 in words is "twenty-two billion, six hundred fifty-two million, six hundred forty-one thousand, two hundred sixty-one".