20098974720 has 352 divisors, whose sum is σ = 71649847296. Its totient is φ = 4766924800.

The previous prime is 20098974719. The next prime is 20098974769. The reversal of 20098974720 is 2747989002.

It is a tau number, because it is divible by the number of its divisors (352).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 20098974720.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7939855 + ... + 7942385.

Almost surely, 2^20098974720 is an apocalyptic number.

20098974720 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 20098974720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35824923648).

20098974720 is an abundant number, since it is smaller than the sum of its proper divisors (51550872576).

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

20098974720 is a wasteful number, since it uses less digits than its factorization.

20098974720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 20098974720 in words is "twenty billion, ninety-eight million, nine hundred seventy-four thousand, seven hundred twenty".