20125600636319 has 2 divisors, whose sum is σ = 20125600636320. Its totient is φ = 20125600636318.

The previous prime is 20125600636259. The next prime is 20125600636327. The reversal of 20125600636319 is 91363600652102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20125600636319 - 2¹⁶ = 20125600570783 is a prime.

It is a super-2 number, since 2×20125600636319² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20125600636319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20125600636399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062800318159 + 10062800318160.

It is an arithmetic number, because the mean of its divisors is an integer number (10062800318160).

Almost surely, 2^{20125600636319} is an apocalyptic number.

20125600636319 is a deficient number, since it is larger than the sum of its proper divisors (1).

20125600636319 is an equidigital number, since it uses as much as digits as its factorization.

20125600636319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 20125600636319 in words is "twenty trillion, one hundred twenty-five billion, six hundred million, six hundred thirty-six thousand, three hundred nineteen".