99678032105567 has 2 divisors, whose sum is σ = 99678032105568. Its totient is φ = 99678032105566.

The previous prime is 99678032105507. The next prime is 99678032105569. The reversal of 99678032105567 is 76550123087699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99678032105567 - 2⁶ = 99678032105503 is a prime.

Together with 99678032105569, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99678032105497 and 99678032105506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99678032105569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49839016052783 + 49839016052784.

It is an arithmetic number, because the mean of its divisors is an integer number (49839016052784).

Almost surely, 2^{99678032105567} is an apocalyptic number.

99678032105567 is a deficient number, since it is larger than the sum of its proper divisors (1).

99678032105567 is an equidigital number, since it uses as much as digits as its factorization.

99678032105567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 171460800, while the sum is 68.

The spelling of 99678032105567 in words is "ninety-nine trillion, six hundred seventy-eight billion, thirty-two million, one hundred five thousand, five hundred sixty-seven".