20598385104 has 320 divisors, whose sum is σ = 68961300480. Its totient is φ = 5817415680.

The previous prime is 20598385091. The next prime is 20598385123. The reversal of 20598385104 is 40158389502.

20598385104 is a `hidden beast` number, since 2 + 0 + 59 + 83 + 8 + 510 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20598385104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8642697 + ... + 8645079.

It is an arithmetic number, because the mean of its divisors is an integer number (215504064).

Almost surely, 2^20598385104 is an apocalyptic number.

20598385104 is a gapful number since it is divisible by the number (24) 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 20598385104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34480650240).

20598385104 is an abundant number, since it is smaller than the sum of its proper divisors (48362915376).

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

20598385104 is a wasteful number, since it uses less digits than its factorization.

20598385104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535 (or 2523 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 20598385104 in words is "twenty billion, five hundred ninety-eight million, three hundred eighty-five thousand, one hundred four".