20375262534401 has 2 divisors, whose sum is σ = 20375262534402. Its totient is φ = 20375262534400.

The previous prime is 20375262534359. The next prime is 20375262534409. The reversal of 20375262534401 is 10443526257302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20164949491600 + 210313042801 = 4490540^2 + 458599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20375262534401 is a prime.

It is not a weakly prime, because it can be changed into another prime (20375262534409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10187631267200 + 10187631267201.

It is an arithmetic number, because the mean of its divisors is an integer number (10187631267201).

Almost surely, 2^{20375262534401} is an apocalyptic number.

It is an amenable number.

20375262534401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20375262534401 is an equidigital number, since it uses as much as digits as its factorization.

20375262534401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 20375262534401 in words is "twenty trillion, three hundred seventy-five billion, two hundred sixty-two million, five hundred thirty-four thousand, four hundred one".