22144352551 has 8 divisors (see below), whose sum is σ = 23109829344. Its totient is φ = 21179099040.

The previous prime is 22144352533. The next prime is 22144352563. The reversal of 22144352551 is 15525344122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22144352551 - 2²⁷ = 22010134823 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 (22144352651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165585 + ... + 267781.

It is an arithmetic number, because the mean of its divisors is an integer number (2888728668).

Almost surely, 2^22144352551 is an apocalyptic number.

22144352551 is a deficient number, since it is larger than the sum of its proper divisors (965476793).

22144352551 is a wasteful number, since it uses less digits than its factorization.

22144352551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111641.

The product of its digits is 48000, while the sum is 34.

Adding to 22144352551 its reverse (15525344122), we get a palindrome (37669696673).

The spelling of 22144352551 in words is "twenty-two billion, one hundred forty-four million, three hundred fifty-two thousand, five hundred fifty-one".