22356351544666 has 16 divisors (see below), whose sum is σ = 35259593453640. Its totient is φ = 10615791574080.

The previous prime is 22356351544661. The next prime is 22356351544691. The reversal of 22356351544666 is 66644515365322.

It can be written as a sum of positive squares in 4 ways, for example, as 5141080086025 + 17215271458641 = 2267395^2 + 4149129^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 22356351544666.

It is not an unprimeable number, because it can be changed into a prime (22356351544661) by changing a digit.

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, 3159458241 + ... + 3159465316.

Almost surely, 2^{22356351544666} is an apocalyptic number.

22356351544666 is a deficient number, since it is larger than the sum of its proper divisors (12903241908974).

22356351544666 is a wasteful number, since it uses less digits than its factorization.

22356351544666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6318923649.

The product of its digits is 93312000, while the sum is 58.

The spelling of 22356351544666 in words is "twenty-two trillion, three hundred fifty-six billion, three hundred fifty-one million, five hundred forty-four thousand, six hundred sixty-six".