23226168557 has 4 divisors (see below), whose sum is σ = 23231948796. Its totient is φ = 23220388320.

The previous prime is 23226168523. The next prime is 23226168569. The reversal of 23226168557 is 75586162232.

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 9184155556 + 14042013001 = 95834^2 + 118499^2 .

It is a cyclic number.

It is not a de Polignac number, because 23226168557 - 2¹² = 23226164461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23226168257) 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, 2884088 + ... + 2892129.

It is an arithmetic number, because the mean of its divisors is an integer number (5807987199).

Almost surely, 2^23226168557 is an apocalyptic number.

It is an amenable number.

23226168557 is a deficient number, since it is larger than the sum of its proper divisors (5780239).

23226168557 is an equidigital number, since it uses as much as digits as its factorization.

23226168557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780238.

The product of its digits is 1209600, while the sum is 47.

The spelling of 23226168557 in words is "twenty-three billion, two hundred twenty-six million, one hundred sixty-eight thousand, five hundred fifty-seven".