2563111180801 has 4 divisors (see below), whose sum is σ = 2611471769172. Its totient is φ = 2514750592432.

The previous prime is 2563111180789. The next prime is 2563111180831. The reversal of 2563111180801 is 1080811113652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1099981440000 + 1463129740801 = 1048800^2 + 1209599^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563111180801 - 2²³ = 2563102792193 is a prime.

It is a super-2 number, since 2×2563111180801² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2563111180831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24180294106 + ... + 24180294211.

It is an arithmetic number, because the mean of its divisors is an integer number (652867942293).

Almost surely, 2^{2563111180801} is an apocalyptic number.

It is an amenable number.

2563111180801 is a deficient number, since it is larger than the sum of its proper divisors (48360588371).

2563111180801 is an equidigital number, since it uses as much as digits as its factorization.

2563111180801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48360588370.

The product of its (nonzero) digits is 11520, while the sum is 37.

The spelling of 2563111180801 in words is "two trillion, five hundred sixty-three billion, one hundred eleven million, one hundred eighty thousand, eight hundred one".