20525344516 has 12 divisors (see below), whose sum is σ = 35920825920. Its totient is φ = 10262251400.

The previous prime is 20525344513. The next prime is 20525344549. The reversal of 20525344516 is 61544352502.

It is not an unprimeable number, because it can be changed into a prime (20525344513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21465 + ... + 203743.

It is an arithmetic number, because the mean of its divisors is an integer number (2993402160).

Almost surely, 2^20525344516 is an apocalyptic number.

It is an amenable number.

20525344516 is a deficient number, since it is larger than the sum of its proper divisors (15395481404).

20525344516 is a wasteful number, since it uses less digits than its factorization.

20525344516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210434 (or 210432 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 20525344516 in words is "twenty billion, five hundred twenty-five million, three hundred forty-four thousand, five hundred sixteen".