22364121915 has 24 divisors (see below), whose sum is σ = 38824815120. Its totient is φ = 11908966464.

The previous prime is 22364121883. The next prime is 22364121917. The reversal of 22364121915 is 51912146322.

22364121915 is a `hidden beast` number, since 2 + 2 + 3 + 641 + 2 + 1 + 9 + 1 + 5 = 666.

It is not a de Polignac number, because 22364121915 - 2⁵ = 22364121883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22364121915.

It is not an unprimeable number, because it can be changed into a prime (22364121917) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 357520 + ... + 415389.

It is an arithmetic number, because the mean of its divisors is an integer number (1617700630).

Almost surely, 2^22364121915 is an apocalyptic number.

22364121915 is a deficient number, since it is larger than the sum of its proper divisors (16460693205).

22364121915 is a wasteful number, since it uses less digits than its factorization.

22364121915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773563 (or 773560 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The spelling of 22364121915 in words is "twenty-two billion, three hundred sixty-four million, one hundred twenty-one thousand, nine hundred fifteen".