138351616063 has 2 divisors, whose sum is σ = 138351616064. Its totient is φ = 138351616062.

The previous prime is 138351616021. The next prime is 138351616147. The reversal of 138351616063 is 360616153831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138351616063 - 2²⁵ = 138318061631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138351916063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69175808031 + 69175808032.

It is an arithmetic number, because the mean of its divisors is an integer number (69175808032).

Almost surely, 2^138351616063 is an apocalyptic number.

138351616063 is a deficient number, since it is larger than the sum of its proper divisors (1).

138351616063 is an equidigital number, since it uses as much as digits as its factorization.

138351616063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

Adding to 138351616063 its reverse (360616153831), we get a palindrome (498967769894).

The spelling of 138351616063 in words is "one hundred thirty-eight billion, three hundred fifty-one million, six hundred sixteen thousand, sixty-three".