163041803513 has 2 divisors, whose sum is σ = 163041803514. Its totient is φ = 163041803512.

The previous prime is 163041803471. The next prime is 163041803537. The reversal of 163041803513 is 315308140361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130954963129 + 32086840384 = 361877^2 + 179128^2 .

It is a cyclic number.

It is not a de Polignac number, because 163041803513 - 2⁸ = 163041803257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (163041803413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81520901756 + 81520901757.

It is an arithmetic number, because the mean of its divisors is an integer number (81520901757).

Almost surely, 2^163041803513 is an apocalyptic number.

It is an amenable number.

163041803513 is a deficient number, since it is larger than the sum of its proper divisors (1).

163041803513 is an equidigital number, since it uses as much as digits as its factorization.

163041803513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 163041803513 its reverse (315308140361), we get a palindrome (478349943874).

The spelling of 163041803513 in words is "one hundred sixty-three billion, forty-one million, eight hundred three thousand, five hundred thirteen".