115563554173 has 2 divisors, whose sum is σ = 115563554174. Its totient is φ = 115563554172.

The previous prime is 115563554107. The next prime is 115563554177. The reversal of 115563554173 is 371455365511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114973890084 + 589664089 = 339078^2 + 24283^2 .

It is a cyclic number.

It is not a de Polignac number, because 115563554173 - 2³³ = 106973619581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115563554177) 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 as a sum of consecutive naturals, namely, 57781777086 + 57781777087.

It is an arithmetic number, because the mean of its divisors is an integer number (57781777087).

Almost surely, 2^115563554173 is an apocalyptic number.

It is an amenable number.

115563554173 is a deficient number, since it is larger than the sum of its proper divisors (1).

115563554173 is an equidigital number, since it uses as much as digits as its factorization.

115563554173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 945000, while the sum is 46.

The spelling of 115563554173 in words is "one hundred fifteen billion, five hundred sixty-three million, five hundred fifty-four thousand, one hundred seventy-three".