100768081605 has 32 divisors (see below), whose sum is σ = 167918738688. Its totient is φ = 51553958400.

The previous prime is 100768081591. The next prime is 100768081613. The reversal of 100768081605 is 506180867001.

It is not a de Polignac number, because 100768081605 - 2²⁹ = 100231210693 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1239216 + ... + 1318025.

It is an arithmetic number, because the mean of its divisors is an integer number (5247460584).

Almost surely, 2^100768081605 is an apocalyptic number.

100768081605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100768081605 is a deficient number, since it is larger than the sum of its proper divisors (67150657083).

100768081605 is a wasteful number, since it uses less digits than its factorization.

100768081605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557357.

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 100768081605 in words is "one hundred billion, seven hundred sixty-eight million, eighty-one thousand, six hundred five".