138701670111 has 8 divisors (see below), whose sum is σ = 205483955760. Its totient is φ = 92467780056.

The previous prime is 138701670053. The next prime is 138701670139. The reversal of 138701670111 is 111076107831.

138701670111 is a `hidden beast` number, since 1 + 387 + 0 + 167 + 0 + 111 = 666.

It is not a de Polignac number, because 138701670111 - 2⁶ = 138701670047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138701670181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2568549420 + ... + 2568549473.

It is an arithmetic number, because the mean of its divisors is an integer number (25685494470).

Almost surely, 2^138701670111 is an apocalyptic number.

138701670111 is a deficient number, since it is larger than the sum of its proper divisors (66782285649).

138701670111 is an equidigital number, since it uses as much as digits as its factorization.

138701670111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5137098902 (or 5137098896 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

Adding to 138701670111 its reverse (111076107831), we get a palindrome (249777777942).

The spelling of 138701670111 in words is "one hundred thirty-eight billion, seven hundred one million, six hundred seventy thousand, one hundred eleven".