20514540000 has 240 divisors, whose sum is σ = 67699391760. Its totient is φ = 5437440000.

The previous prime is 20514539987. The next prime is 20514540023. The reversal of 20514540000 is 4541502.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10859056 + ... + 10860944.

It is an arithmetic number, because the mean of its divisors is an integer number (282080799).

Almost surely, 2^20514540000 is an apocalyptic number.

20514540000 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 20514540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33849695880).

20514540000 is an abundant number, since it is smaller than the sum of its proper divisors (47184851760).

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

20514540000 is a wasteful number, since it uses less digits than its factorization.

20514540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2080 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The spelling of 20514540000 in words is "twenty billion, five hundred fourteen million, five hundred forty thousand".