22361881663799 has 4 divisors (see below), whose sum is σ = 23334137388336. Its totient is φ = 21389625939264.

The previous prime is 22361881663783. The next prime is 22361881663841. The reversal of 22361881663799 is 99736618816322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22361881663799 - 2⁴ = 22361881663783 is a prime.

It is a super-2 number, since 2×22361881663799² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22361881663399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486127862234 + ... + 486127862279.

It is an arithmetic number, because the mean of its divisors is an integer number (5833534347084).

Almost surely, 2^{22361881663799} is an apocalyptic number.

22361881663799 is a deficient number, since it is larger than the sum of its proper divisors (972255724537).

22361881663799 is an equidigital number, since it uses as much as digits as its factorization.

22361881663799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972255724536.

The product of its digits is 282175488, while the sum is 71.

The spelling of 22361881663799 in words is "twenty-two trillion, three hundred sixty-one billion, eight hundred eighty-one million, six hundred sixty-three thousand, seven hundred ninety-nine".