22257455616 has 160 divisors (see below), whose sum is σ = 71873524800. Its totient is φ = 6744637440.

The previous prime is 22257455579. The next prime is 22257455641. The reversal of 22257455616 is 61655475222.

22257455616 is a `hidden beast` number, since 2 + 2 + 25 + 7 + 4 + 5 + 5 + 616 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78880 + ... + 225248.

It is an arithmetic number, because the mean of its divisors is an integer number (449209530).

Almost surely, 2^22257455616 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 22257455616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35936762400).

22257455616 is an abundant number, since it is smaller than the sum of its proper divisors (49616069184).

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

22257455616 is a wasteful number, since it uses less digits than its factorization.

22257455616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146407 (or 146385 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 22257455616 in words is "twenty-two billion, two hundred fifty-seven million, four hundred fifty-five thousand, six hundred sixteen".