19221598080 has 480 divisors, whose sum is σ = 72976024440. Its totient is φ = 4820484096.

The previous prime is 19221598073. The next prime is 19221598093. The reversal of 19221598080 is 8089512291.

It is a tau number, because it is divible by the number of its divisors (480).

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 59 ways as a sum of consecutive naturals, for example, 14981119 + ... + 14982401.

Almost surely, 2^19221598080 is an apocalyptic number.

19221598080 is a gapful number since it is divisible by the number (10) 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 19221598080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36488012220).

19221598080 is an abundant number, since it is smaller than the sum of its proper divisors (53754426360).

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

19221598080 is a wasteful number, since it uses less digits than its factorization.

19221598080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 19221598080 in words is "nineteen billion, two hundred twenty-one million, five hundred ninety-eight thousand, eighty".