22681518098 has 18 divisors (see below), whose sum is σ = 34372453311. Its totient is φ = 11225214144.

The previous prime is 22681518091. The next prime is 22681518127. The reversal of 22681518098 is 89081518622.

It can be written as a sum of positive squares in 5 ways, for example, as 22615046689 + 66471409 = 150383^2 + 8153^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106493.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22681518091) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23214986 + ... + 23215962.

Almost surely, 2^22681518098 is an apocalyptic number.

22681518098 is a deficient number, since it is larger than the sum of its proper divisors (11690935213).

22681518098 is an frugal number, since it uses more digits than its factorization.

22681518098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 50.

Multiplying 22681518098 by its sum of digits (50), we get a square (1134075904900 = 1064930²).

The spelling of 22681518098 in words is "twenty-two billion, six hundred eighty-one million, five hundred eighteen thousand, ninety-eight".