83173525663 has 2 divisors, whose sum is σ = 83173525664. Its totient is φ = 83173525662.

The previous prime is 83173525613. The next prime is 83173525703. The reversal of 83173525663 is 36652537138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83173525663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83173525613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41586762831 + 41586762832.

It is an arithmetic number, because the mean of its divisors is an integer number (41586762832).

Almost surely, 2^83173525663 is an apocalyptic number.

83173525663 is a deficient number, since it is larger than the sum of its proper divisors (1).

83173525663 is an equidigital number, since it uses as much as digits as its factorization.

83173525663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 49.

The spelling of 83173525663 in words is "eighty-three billion, one hundred seventy-three million, five hundred twenty-five thousand, six hundred sixty-three".