138099866933 has 16 divisors (see below), whose sum is σ = 163320192000. Its totient is φ = 114254956032.

The previous prime is 138099866903. The next prime is 138099866939. The reversal of 138099866933 is 339668990831.

It is not a de Polignac number, because 138099866933 - 2⁶ = 138099866869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138099866933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138099866939) 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, 580613 + ... + 783141.

It is an arithmetic number, because the mean of its divisors is an integer number (10207512000).

Almost surely, 2^138099866933 is an apocalyptic number.

It is an amenable number.

138099866933 is a deficient number, since it is larger than the sum of its proper divisors (25220325067).

138099866933 is a wasteful number, since it uses less digits than its factorization.

138099866933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205924.

The product of its (nonzero) digits is 45349632, while the sum is 65.

The spelling of 138099866933 in words is "one hundred thirty-eight billion, ninety-nine million, eight hundred sixty-six thousand, nine hundred thirty-three".