19220745888720 has 200 divisors, whose sum is σ = 66759004055040. Its totient is φ = 5125339825920.

The previous prime is 19220745888719. The next prime is 19220745888731. The reversal of 19220745888720 is 2788854702291.

19220745888720 is a `hidden beast` number, since 1 + 9 + 2 + 20 + 7 + 4 + 588 + 8 + 7 + 20 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 285857505 + ... + 285924735.

Almost surely, 2^{19220745888720} is an apocalyptic number.

19220745888720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19220745888720 is an abundant number, since it is smaller than the sum of its proper divisors (47538258166320).

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

19220745888720 is a wasteful number, since it uses less digits than its factorization.

19220745888720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111375 (or 111360 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 63.

The spelling of 19220745888720 in words is "nineteen trillion, two hundred twenty billion, seven hundred forty-five million, eight hundred eighty-eight thousand, seven hundred twenty".