22163321645 has 8 divisors (see below), whose sum is σ = 27161858304. Its totient is φ = 17353409104.

The previous prime is 22163321633. The next prime is 22163321669. The reversal of 22163321645 is 54612336122.

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 22163321645 - 2¹² = 22163317549 is a prime.

It is a super-3 number, since 3×22163321645³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47155769 + ... + 47156238.

It is an arithmetic number, because the mean of its divisors is an integer number (3395232288).

Almost surely, 2^22163321645 is an apocalyptic number.

It is an amenable number.

22163321645 is a deficient number, since it is larger than the sum of its proper divisors (4998536659).

22163321645 is an equidigital number, since it uses as much as digits as its factorization.

22163321645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94312059.

The product of its digits is 51840, while the sum is 35.

Adding to 22163321645 its reverse (54612336122), we get a palindrome (76775657767).

The spelling of 22163321645 in words is "twenty-two billion, one hundred sixty-three million, three hundred twenty-one thousand, six hundred forty-five".