22312163643 has 16 divisors (see below), whose sum is σ = 37090350336. Its totient is φ = 11590734240.

The previous prime is 22312163593. The next prime is 22312163651. The reversal of 22312163643 is 34636121322.

It is a happy number.

It is not a de Polignac number, because 22312163643 - 2⁹ = 22312163131 is a prime.

It is a super-3 number, since 3×22312163643³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (22312163663) 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, 48294496 + ... + 48294957.

It is an arithmetic number, because the mean of its divisors is an integer number (2318146896).

Almost surely, 2^22312163643 is an apocalyptic number.

22312163643 is a deficient number, since it is larger than the sum of its proper divisors (14778186693).

22312163643 is a wasteful number, since it uses less digits than its factorization.

22312163643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96589474.

The product of its digits is 31104, while the sum is 33.

Adding to 22312163643 its reverse (34636121322), we get a palindrome (56948284965).

The spelling of 22312163643 in words is "twenty-two billion, three hundred twelve million, one hundred sixty-three thousand, six hundred forty-three".