22064198940 has 144 divisors (see below), whose sum is σ = 76681725120. Its totient is φ = 5030553600.

The previous prime is 22064198929. The next prime is 22064198953. The reversal of 22064198940 is 4989146022.

22064198940 is a `hidden beast` number, since 220 + 6 + 419 + 8 + 9 + 4 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 483426 + ... + 527094.

It is an arithmetic number, because the mean of its divisors is an integer number (532511980).

Almost surely, 2^22064198940 is an apocalyptic number.

22064198940 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 22064198940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38340862560).

22064198940 is an abundant number, since it is smaller than the sum of its proper divisors (54617526180).

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

22064198940 is a wasteful number, since it uses less digits than its factorization.

22064198940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44092 (or 44087 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 22064198940 in words is "twenty-two billion, sixty-four million, one hundred ninety-eight thousand, nine hundred forty".