20125656354033 has 16 divisors (see below), whose sum is σ = 29817159595200. Its totient is φ = 13416486654240.

The previous prime is 20125656353969. The next prime is 20125656354043. The reversal of 20125656354033 is 33045365652102.

20125656354033 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 5 + 6 + 5 + 635 + 4 + 0 + 3 + 3 = 666.

It is not a de Polignac number, because 20125656354033 - 2⁶ = 20125656353969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20125656354033.

It is not an unprimeable number, because it can be changed into a prime (20125656354043) 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 15 ways as a sum of consecutive naturals, for example, 16557228 + ... + 17731133.

It is an arithmetic number, because the mean of its divisors is an integer number (1863572474700).

Almost surely, 2^{20125656354033} is an apocalyptic number.

It is an amenable number.

20125656354033 is a deficient number, since it is larger than the sum of its proper divisors (9691503241167).

20125656354033 is a wasteful number, since it uses less digits than its factorization.

20125656354033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34310109 (or 34310103 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 45.

The spelling of 20125656354033 in words is "twenty trillion, one hundred twenty-five billion, six hundred fifty-six million, three hundred fifty-four thousand, thirty-three".