105078238640663 has 2 divisors, whose sum is σ = 105078238640664. Its totient is φ = 105078238640662.

The previous prime is 105078238640651. The next prime is 105078238640707. The reversal of 105078238640663 is 366046832870501.

It is a weak prime.

It is an emirp because it is prime and its reverse (366046832870501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105078238640663 - 2¹⁴ = 105078238624279 is a prime.

It is a super-2 number, since 2×105078238640663² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105078238640623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52539119320331 + 52539119320332.

It is an arithmetic number, because the mean of its divisors is an integer number (52539119320332).

Almost surely, 2^{105078238640663} is an apocalyptic number.

105078238640663 is a deficient number, since it is larger than the sum of its proper divisors (1).

105078238640663 is an equidigital number, since it uses as much as digits as its factorization.

105078238640663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34836480, while the sum is 59.

The spelling of 105078238640663 in words is "one hundred five trillion, seventy-eight billion, two hundred thirty-eight million, six hundred forty thousand, six hundred sixty-three".