22400123065 has 32 divisors (see below), whose sum is σ = 28848798720. Its totient is φ = 16666214400.

The previous prime is 22400123041. The next prime is 22400123071. The reversal of 22400123065 is 56032100422.

It is a de Polignac number, because none of the positive numbers 2^k-22400123065 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399481 + ... + 452089.

It is an arithmetic number, because the mean of its divisors is an integer number (901524960).

Almost surely, 2^22400123065 is an apocalyptic number.

It is an amenable number.

22400123065 is a deficient number, since it is larger than the sum of its proper divisors (6448675655).

22400123065 is a wasteful number, since it uses less digits than its factorization.

22400123065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52753.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 22400123065 its reverse (56032100422), we get a palindrome (78432223487).

The spelling of 22400123065 in words is "twenty-two billion, four hundred million, one hundred twenty-three thousand, sixty-five".