20684600958325 has 12 divisors (see below), whose sum is σ = 25651000895428. Its totient is φ = 16546328697600.

The previous prime is 20684600958311. The next prime is 20684600958341. The reversal of 20684600958325 is 52385900648602.

It can be written as a sum of positive squares in 6 ways, for example, as 886719788964 + 19797881169361 = 941658^2 + 4449481^2 .

It is not a de Polignac number, because 20684600958325 - 2¹³ = 20684600950133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20684600958325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33489582 + ... + 34101631.

Almost surely, 2^{20684600958325} is an apocalyptic number.

20684600958325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20684600958325 is a deficient number, since it is larger than the sum of its proper divisors (4966399937103).

20684600958325 is a wasteful number, since it uses less digits than its factorization.

20684600958325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67603464 (or 67603459 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 20684600958325 in words is "twenty trillion, six hundred eighty-four billion, six hundred million, nine hundred fifty-eight thousand, three hundred twenty-five".