22399475616 has 336 divisors, whose sum is σ = 76020336000. Its totient is φ = 6361265664.

The previous prime is 22399475597. The next prime is 22399475627. The reversal of 22399475616 is 61657499322.

22399475616 is a `hidden beast` number, since 2 + 2 + 39 + 9 + 47 + 561 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (4898880) is a multiple of the sum of its prime divisors (840).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 37394485 + ... + 37395083.

It is an arithmetic number, because the mean of its divisors is an integer number (226251000).

Almost surely, 2^22399475616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22399475616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38010168000).

22399475616 is an abundant number, since it is smaller than the sum of its proper divisors (53620860384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22399475616 is an equidigital number, since it uses as much as digits as its factorization.

22399475616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 840 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The spelling of 22399475616 in words is "twenty-two billion, three hundred ninety-nine million, four hundred seventy-five thousand, six hundred sixteen".