20888539200 has 840 divisors, whose sum is σ = 85747860000. Its totient is φ = 4956733440.

The previous prime is 20888539159. The next prime is 20888539213. The reversal of 20888539200 is 293588802.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 41860551 + ... + 41861049.

Almost surely, 2^20888539200 is an apocalyptic number.

20888539200 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 20888539200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42873930000).

20888539200 is an abundant number, since it is smaller than the sum of its proper divisors (64859320800).

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

20888539200 is a wasteful number, since it uses less digits than its factorization.

20888539200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 20888539200 in words is "twenty billion, eight hundred eighty-eight million, five hundred thirty-nine thousand, two hundred".