20201112516 has 24 divisors (see below), whose sum is σ = 50761770304. Its totient is φ = 6215726880.

The previous prime is 20201112511. The next prime is 20201112553. The reversal of 20201112516 is 61521110202.

It is a junction number, because it is equal to n+sod(n) for n = 20201112492 and 20201112501.

It is not an unprimeable number, because it can be changed into a prime (20201112511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64747000 + ... + 64747311.

Almost surely, 2^20201112516 is an apocalyptic number.

20201112516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20201112516 is an abundant number, since it is smaller than the sum of its proper divisors (30560657788).

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

20201112516 is a wasteful number, since it uses less digits than its factorization.

20201112516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129494331 (or 129494329 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 20201112516 its reverse (61521110202), we get a palindrome (81722222718).

The spelling of 20201112516 in words is "twenty billion, two hundred one million, one hundred twelve thousand, five hundred sixteen".