22560463890 has 192 divisors, whose sum is σ = 61691175936. Its totient is φ = 5715081216.

The previous prime is 22560463889. The next prime is 22560463901. The reversal of 22560463890 is 9836406522.

22560463890 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 0 + 4 + 638 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23091082 + ... + 23092058.

It is an arithmetic number, because the mean of its divisors is an integer number (321308208).

Almost surely, 2^22560463890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22560463890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30845587968).

22560463890 is an abundant number, since it is smaller than the sum of its proper divisors (39130712046).

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

22560463890 is a wasteful number, since it uses less digits than its factorization.

22560463890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 22560463890 in words is "twenty-two billion, five hundred sixty million, four hundred sixty-three thousand, eight hundred ninety".