139664803091 has 6 divisors (see below), whose sum is σ = 153515858076. Its totient is φ = 126968002700.

The previous prime is 139664803049. The next prime is 139664803151. The reversal of 139664803091 is 190308466931.

It is not a de Polignac number, because 139664803091 - 2¹⁴ = 139664786707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139664803001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 577127165 + ... + 577127406.

It is an arithmetic number, because the mean of its divisors is an integer number (25585976346).

Almost surely, 2^139664803091 is an apocalyptic number.

139664803091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

139664803091 is a deficient number, since it is larger than the sum of its proper divisors (13851054985).

139664803091 is a wasteful number, since it uses less digits than its factorization.

139664803091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154254593 (or 1154254582 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 139664803091 in words is "one hundred thirty-nine billion, six hundred sixty-four million, eight hundred three thousand, ninety-one".