22523410161 has 48 divisors (see below), whose sum is σ = 37661539968. Its totient is φ = 12706365600.

The previous prime is 22523410157. The next prime is 22523410163. The reversal of 22523410161 is 16101432522.

22523410161 is a `hidden beast` number, since 225 + 23 + 410 + 1 + 6 + 1 = 666.

It is not a de Polignac number, because 22523410161 - 2² = 22523410157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22523410163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64908790 + ... + 64909136.

It is an arithmetic number, because the mean of its divisors is an integer number (784615416).

Almost surely, 2^22523410161 is an apocalyptic number.

22523410161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22523410161 is a deficient number, since it is larger than the sum of its proper divisors (15138129807).

22523410161 is an frugal number, since it uses more digits than its factorization.

22523410161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 22523410161 its reverse (16101432522), we get a palindrome (38624842683).

The spelling of 22523410161 in words is "twenty-two billion, five hundred twenty-three million, four hundred ten thousand, one hundred sixty-one".