20354598880 has 384 divisors, whose sum is σ = 64743598080. Its totient is φ = 5856829440.

The previous prime is 20354598829. The next prime is 20354598941. The reversal of 20354598880 is 8889545302.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

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, 8216202 + ... + 8218678.

It is an arithmetic number, because the mean of its divisors is an integer number (168603120).

Almost surely, 2^20354598880 is an apocalyptic number.

20354598880 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 20354598880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32371799040).

20354598880 is an abundant number, since it is smaller than the sum of its proper divisors (44388999200).

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

20354598880 is a wasteful number, since it uses less digits than its factorization.

20354598880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562 (or 2554 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 20354598880 in words is "twenty billion, three hundred fifty-four million, five hundred ninety-eight thousand, eight hundred eighty".