25044066163 has 2 divisors, whose sum is σ = 25044066164. Its totient is φ = 25044066162.

The previous prime is 25044066109. The next prime is 25044066197. The reversal of 25044066163 is 36166044052.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25044066163 is a prime.

It is not a weakly prime, because it can be changed into another prime (25044066863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12522033081 + 12522033082.

It is an arithmetic number, because the mean of its divisors is an integer number (12522033082).

Almost surely, 2^25044066163 is an apocalyptic number.

25044066163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25044066163 is an equidigital number, since it uses as much as digits as its factorization.

25044066163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 25044066163 in words is "twenty-five billion, forty-four million, sixty-six thousand, one hundred sixty-three".