22644765000 has 1600 divisors, whose sum is σ = 102877568640. Its totient is φ = 4561920000.

The previous prime is 22644764969. The next prime is 22644765037. The reversal of 22644765000 is 56744622.

22644765000 is a `hidden beast` number, since 2 + 2 + 644 + 7 + 6 + 5 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 399 ways as a sum of consecutive naturals, for example, 984554989 + ... + 984555011.

Almost surely, 2^22644765000 is an apocalyptic number.

22644765000 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 22644765000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51438784320).

22644765000 is an abundant number, since it is smaller than the sum of its proper divisors (80232803640).

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

22644765000 is a wasteful number, since it uses less digits than its factorization.

22644765000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 22644765000 in words is "twenty-two billion, six hundred forty-four million, seven hundred sixty-five thousand".