20481308354000 has 160 divisors (see below), whose sum is σ = 53376525829536. Its totient is φ = 7556203929600.

The previous prime is 20481308353931. The next prime is 20481308354051. The reversal of 20481308354000 is 45380318402.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 18000028110736 + 2481280243264 = 4242644^2 + 1575208^2 .

It is a congruent number.

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, 31843592 + ... + 32480408.

Almost surely, 2^{20481308354000} is an apocalyptic number.

20481308354000 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 20481308354000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26688262914768).

20481308354000 is an abundant number, since it is smaller than the sum of its proper divisors (32895217475536).

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

20481308354000 is a wasteful number, since it uses less digits than its factorization.

20481308354000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638090 (or 638074 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 20481308354000 in words is "twenty trillion, four hundred eighty-one billion, three hundred eight million, three hundred fifty-four thousand".