22218900631565 has 8 divisors (see below), whose sum is σ = 29086560826848. Its totient is φ = 16159200459280.

The previous prime is 22218900631553. The next prime is 22218900631667. The reversal of 22218900631565 is 56513600981222.

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

It is not a de Polignac number, because 22218900631565 - 2⁴⁰ = 21119389003789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201990005687 + ... + 201990005796.

It is an arithmetic number, because the mean of its divisors is an integer number (3635820103356).

Almost surely, 2^{22218900631565} is an apocalyptic number.

It is an amenable number.

22218900631565 is a deficient number, since it is larger than the sum of its proper divisors (6867660195283).

22218900631565 is a wasteful number, since it uses less digits than its factorization.

22218900631565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403980011499.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 22218900631565 in words is "twenty-two trillion, two hundred eighteen billion, nine hundred million, six hundred thirty-one thousand, five hundred sixty-five".