20516524274 has 16 divisors (see below), whose sum is σ = 30911969088. Its totient is φ = 10212586032.

The previous prime is 20516524247. The next prime is 20516524277. The reversal of 20516524274 is 47242561502.

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 7 ways as a sum of consecutive naturals, for example, 849149 + ... + 872975.

It is an arithmetic number, because the mean of its divisors is an integer number (1931998068).

Almost surely, 2^20516524274 is an apocalyptic number.

20516524274 is a deficient number, since it is larger than the sum of its proper divisors (10395444814).

20516524274 is a wasteful number, since it uses less digits than its factorization.

20516524274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25729.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 20516524274 in words is "twenty billion, five hundred sixteen million, five hundred twenty-four thousand, two hundred seventy-four".