20516524273 has 48 divisors (see below), whose sum is σ = 26723934720. Its totient is φ = 15607033344.

The previous prime is 20516524247. The next prime is 20516524277. The reversal of 20516524273 is 37242561502.

It is not a de Polignac number, because 20516524273 - 2⁹ = 20516523761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20516524277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3526515 + ... + 3532327.

It is an arithmetic number, because the mean of its divisors is an integer number (556748640).

Almost surely, 2^20516524273 is an apocalyptic number.

It is an amenable number.

20516524273 is a deficient number, since it is larger than the sum of its proper divisors (6207410447).

20516524273 is a wasteful number, since it uses less digits than its factorization.

20516524273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086 (or 6079 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 20516524273 in words is "twenty billion, five hundred sixteen million, five hundred twenty-four thousand, two hundred seventy-three".