22155957789 has 16 divisors (see below), whose sum is σ = 33938227200. Its totient is φ = 12594259440.

The previous prime is 22155957787. The next prime is 22155957821. The reversal of 22155957789 is 98775955122.

It is not a de Polignac number, because 22155957789 - 2¹ = 22155957787 is a prime.

It is a super-3 number, since 3×22155957789³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155957781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2757889 + ... + 2765910.

It is an arithmetic number, because the mean of its divisors is an integer number (2121139200).

Almost surely, 2^22155957789 is an apocalyptic number.

It is an amenable number.

22155957789 is a deficient number, since it is larger than the sum of its proper divisors (11782269411).

22155957789 is a wasteful number, since it uses less digits than its factorization.

22155957789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524000.

The product of its digits is 15876000, while the sum is 60.

The spelling of 22155957789 in words is "twenty-two billion, one hundred fifty-five million, nine hundred fifty-seven thousand, seven hundred eighty-nine".