20025123432067 has 16 divisors (see below), whose sum is σ = 21767476060512. Its totient is φ = 18311628556800.

The previous prime is 20025123432007. The next prime is 20025123432073. The reversal of 20025123432067 is 76023432152002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20025123432067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20025123432007) 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, 99825067 + ... + 100025467.

It is an arithmetic number, because the mean of its divisors is an integer number (1360467253782).

Almost surely, 2^{20025123432067} is an apocalyptic number.

20025123432067 is a deficient number, since it is larger than the sum of its proper divisors (1742352628445).

20025123432067 is a wasteful number, since it uses less digits than its factorization.

20025123432067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272358.

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 20025123432067 its reverse (76023432152002), we get a palindrome (96048555584069).

The spelling of 20025123432067 in words is "twenty trillion, twenty-five billion, one hundred twenty-three million, four hundred thirty-two thousand, sixty-seven".