83105066887 has 2 divisors, whose sum is σ = 83105066888. Its totient is φ = 83105066886.

The previous prime is 83105066873. The next prime is 83105066903. The reversal of 83105066887 is 78866050138.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83105066887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83105061887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41552533443 + 41552533444.

It is an arithmetic number, because the mean of its divisors is an integer number (41552533444).

Almost surely, 2^83105066887 is an apocalyptic number.

83105066887 is a deficient number, since it is larger than the sum of its proper divisors (1).

83105066887 is an equidigital number, since it uses as much as digits as its factorization.

83105066887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 83105066887 in words is "eighty-three billion, one hundred five million, sixty-six thousand, eight hundred eighty-seven".