20516524272 has 60 divisors (see below), whose sum is σ = 58969619800. Its totient is φ = 6654006144.

The previous prime is 20516524247. The next prime is 20516524277. The reversal of 20516524272 is 27242561502.

20516524272 is a `hidden beast` number, since 20 + 516 + 52 + 4 + 2 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1920022 + ... + 1930677.

Almost surely, 2^20516524272 is an apocalyptic number.

It is an amenable number.

20516524272 is an abundant number, since it is smaller than the sum of its proper divisors (38453095528).

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

20516524272 is a wasteful number, since it uses less digits than its factorization.

20516524272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850750 (or 3850741 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 20516524272 in words is "twenty billion, five hundred sixteen million, five hundred twenty-four thousand, two hundred seventy-two".