20125643445027 has 12 divisors (see below), whose sum is σ = 29178442172880. Its totient is φ = 13367217949488.

The previous prime is 20125643445013. The next prime is 20125643445041. The reversal of 20125643445027 is 72054434652102.

20125643445027 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 564 + 34 + 4 + 50 + 2 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (20125643445013) and next prime (20125643445041).

It is not a de Polignac number, because 20125643445027 - 2¹¹ = 20125643442979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20125643445067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4156470823 + ... + 4156475664.

It is an arithmetic number, because the mean of its divisors is an integer number (2431536847740).

Almost surely, 2^{20125643445027} is an apocalyptic number.

20125643445027 is a deficient number, since it is larger than the sum of its proper divisors (9052798727853).

20125643445027 is a wasteful number, since it uses less digits than its factorization.

20125643445027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312946762 (or 8312946759 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 20125643445027 in words is "twenty trillion, one hundred twenty-five billion, six hundred forty-three million, four hundred forty-five thousand, twenty-seven".