20298596864 has 320 divisors, whose sum is σ = 52549136640. Its totient is φ = 7617576960.

The previous prime is 20298596827. The next prime is 20298596867. The reversal of 20298596864 is 46869589202.

It is not an unprimeable number, because it can be changed into a prime (20298596867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112146854 + ... + 112147034.

It is an arithmetic number, because the mean of its divisors is an integer number (164216052).

Almost surely, 2^20298596864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20298596864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26274568320).

20298596864 is an abundant number, since it is smaller than the sum of its proper divisors (32250539776).

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

20298596864 is a wasteful number, since it uses less digits than its factorization.

20298596864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 20298596864 in words is "twenty billion, two hundred ninety-eight million, five hundred ninety-six thousand, eight hundred sixty-four".