20257660716125 has 128 divisors (see below), whose sum is σ = 29560731992064. Its totient is φ = 13573325088000.

The previous prime is 20257660716109. The next prime is 20257660716127. The reversal of 20257660716125 is 52161706675202.

It is not a de Polignac number, because 20257660716125 - 2⁴ = 20257660716109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20257660716127) 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 127 ways as a sum of consecutive naturals, for example, 6701176364 + ... + 6701179386.

It is an arithmetic number, because the mean of its divisors is an integer number (230943218688).

Almost surely, 2^{20257660716125} is an apocalyptic number.

20257660716125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20257660716125 is a deficient number, since it is larger than the sum of its proper divisors (9303071275939).

20257660716125 is a wasteful number, since it uses less digits than its factorization.

20257660716125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892 (or 3882 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 20257660716125 in words is "twenty trillion, two hundred fifty-seven billion, six hundred sixty million, seven hundred sixteen thousand, one hundred twenty-five".