22775639040 has 1056 divisors, whose sum is σ = 101164377600. Its totient is φ = 4696473600.

The previous prime is 22775639021. The next prime is 22775639083. The reversal of 22775639040 is 4093657722.

22775639040 is a `hidden beast` number, since 2 + 2 + 7 + 7 + 5 + 639 + 0 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1056).

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

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, 173859775 + ... + 173859905.

It is an arithmetic number, because the mean of its divisors is an integer number (95799600).

Almost surely, 2^22775639040 is an apocalyptic number.

22775639040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22775639040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50582188800).

22775639040 is an abundant number, since it is smaller than the sum of its proper divisors (78388738560).

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

22775639040 is a wasteful number, since it uses less digits than its factorization.

22775639040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 22775639040 in words is "twenty-two billion, seven hundred seventy-five million, six hundred thirty-nine thousand, forty".