22365166401 has 6 divisors (see below), whose sum is σ = 32305240370. Its totient is φ = 14910110928.

The previous prime is 22365166393. The next prime is 22365166441. The reversal of 22365166401 is 10466156322.

22365166401 is a `hidden beast` number, since 2 + 2 + 3 + 6 + 5 + 1 + 6 + 640 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21527932176 + 837234225 = 146724^2 + 28935^2 .

It is not a de Polignac number, because 22365166401 - 2³ = 22365166393 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (22365166441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1242509236 + ... + 1242509253.

Almost surely, 2^22365166401 is an apocalyptic number.

It is an amenable number.

22365166401 is a deficient number, since it is larger than the sum of its proper divisors (9940073969).

22365166401 is a wasteful number, since it uses less digits than its factorization.

22365166401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485018495 (or 2485018492 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 22365166401 in words is "twenty-two billion, three hundred sixty-five million, one hundred sixty-six thousand, four hundred one".