22461421461165 has 12 divisors (see below), whose sum is σ = 38933130532764. Its totient is φ = 11979424779264.

The previous prime is 22461421461151. The next prime is 22461421461187. The reversal of 22461421461165 is 56116412416422.

22461421461165 is a `hidden beast` number, since 2 + 2 + 4 + 6 + 1 + 4 + 21 + 4 + 611 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11287624406436 + 11173797054729 = 3359706^2 + 3342723^2 .

It is not a de Polignac number, because 22461421461165 - 2¹⁶ = 22461421395629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 499142699137 = 22461421461165 / (2 + 2 + 4 + 6 + 1 + 4 + 2 + 1 + 4 + 6 + 1 + 1 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 22461421461165.

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 11 ways as a sum of consecutive naturals, for example, 249571349524 + ... + 249571349613.

It is an arithmetic number, because the mean of its divisors is an integer number (3244427544397).

Almost surely, 2^{22461421461165} is an apocalyptic number.

It is an amenable number.

22461421461165 is a deficient number, since it is larger than the sum of its proper divisors (16471709071599).

22461421461165 is a wasteful number, since it uses less digits than its factorization.

22461421461165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499142699148 (or 499142699145 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

Adding to 22461421461165 its reverse (56116412416422), we get a palindrome (78577833877587).

The spelling of 22461421461165 in words is "twenty-two trillion, four hundred sixty-one billion, four hundred twenty-one million, four hundred sixty-one thousand, one hundred sixty-five".