20116707011525 has 24 divisors (see below), whose sum is σ = 25903167315144. Its totient is φ = 15485764377600.

The previous prime is 20116707011521. The next prime is 20116707011573. The reversal of 20116707011525 is 52511070761102.

It can be written as a sum of positive squares in 12 ways, for example, as 12528081487009 + 7588625524516 = 3539503^2 + 2754746^2 .

It is not a de Polignac number, because 20116707011525 - 2² = 20116707011521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116707011521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134350214 + ... + 134499863.

It is an arithmetic number, because the mean of its divisors is an integer number (1079298638131).

Almost surely, 2^{20116707011525} is an apocalyptic number.

20116707011525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20116707011525 is a deficient number, since it is larger than the sum of its proper divisors (5786460303619).

20116707011525 is a wasteful number, since it uses less digits than its factorization.

20116707011525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268850201 (or 268850196 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 38.

Adding to 20116707011525 its reverse (52511070761102), we get a palindrome (72627777772627).

The spelling of 20116707011525 in words is "twenty trillion, one hundred sixteen billion, seven hundred seven million, eleven thousand, five hundred twenty-five".