22154088689 has 4 divisors (see below), whose sum is σ = 22161034560. Its totient is φ = 22147142820.

The previous prime is 22154088659. The next prime is 22154088701. The reversal of 22154088689 is 98688045122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22154088689 - 2¹⁶ = 22154023153 is a prime.

It is a Duffinian number.

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 22154088689.

It is not an unprimeable number, because it can be changed into a prime (22154088629) 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, 3468149 + ... + 3474530.

It is an arithmetic number, because the mean of its divisors is an integer number (5540258640).

Almost surely, 2^22154088689 is an apocalyptic number.

It is an amenable number.

22154088689 is a deficient number, since it is larger than the sum of its proper divisors (6945871).

22154088689 is an equidigital number, since it uses as much as digits as its factorization.

22154088689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6945870.

The product of its (nonzero) digits is 2211840, while the sum is 53.

It can be divided in two parts, 2215 and 4088689, that added together give a palindrome (4090904).

The spelling of 22154088689 in words is "twenty-two billion, one hundred fifty-four million, eighty-eight thousand, six hundred eighty-nine".