138180716833 has 16 divisors (see below), whose sum is σ = 148065076800. Its totient is φ = 128564124480.

The previous prime is 138180716783. The next prime is 138180716857. The reversal of 138180716833 is 338617081831.

It is a cyclic number.

It is not a de Polignac number, because 138180716833 - 2⁹ = 138180716321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138180716873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665538 + ... + 848116.

It is an arithmetic number, because the mean of its divisors is an integer number (9254067300).

Almost surely, 2^138180716833 is an apocalyptic number.

It is an amenable number.

138180716833 is a deficient number, since it is larger than the sum of its proper divisors (9884359967).

138180716833 is a wasteful number, since it uses less digits than its factorization.

138180716833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183312.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 138180716833 in words is "one hundred thirty-eight billion, one hundred eighty million, seven hundred sixteen thousand, eight hundred thirty-three".