100866516498239 has 2 divisors, whose sum is σ = 100866516498240. Its totient is φ = 100866516498238.

The previous prime is 100866516498211. The next prime is 100866516498329. The reversal of 100866516498239 is 932894615668001.

Together with next prime (100866516498329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100866516498239 - 2²⁰ = 100866515449663 is a prime.

It is a super-2 number, since 2×100866516498239² (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 (100866516488239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50433258249119 + 50433258249120.

It is an arithmetic number, because the mean of its divisors is an integer number (50433258249120).

Almost surely, 2^{100866516498239} is an apocalyptic number.

100866516498239 is a deficient number, since it is larger than the sum of its proper divisors (1).

100866516498239 is an equidigital number, since it uses as much as digits as its factorization.

100866516498239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134369280, while the sum is 68.

The spelling of 100866516498239 in words is "one hundred trillion, eight hundred sixty-six billion, five hundred sixteen million, four hundred ninety-eight thousand, two hundred thirty-nine".