20512114500 has 96 divisors (see below), whose sum is σ = 59778036864. Its totient is φ = 5465616000.

The previous prime is 20512114489. The next prime is 20512114549. The reversal of 20512114500 is 541121502.

It is a super-2 number, since 2×20512114500² (a number of 21 digits) contains 22 as substring.

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, 2219890 + ... + 2229110.

It is an arithmetic number, because the mean of its divisors is an integer number (622687884).

Almost surely, 2^20512114500 is an apocalyptic number.

20512114500 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 20512114500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29889018432).

20512114500 is an abundant number, since it is smaller than the sum of its proper divisors (39265922364).

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

20512114500 is a wasteful number, since it uses less digits than its factorization.

20512114500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726 (or 10714 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The spelling of 20512114500 in words is "twenty billion, five hundred twelve million, one hundred fourteen thousand, five hundred".