138512163106 has 16 divisors (see below), whose sum is σ = 211744288800. Its totient is φ = 67939312320.

The previous prime is 138512163073. The next prime is 138512163113. The reversal of 138512163106 is 601361215831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2112256 + ... + 2176843.

It is an arithmetic number, because the mean of its divisors is an integer number (13234018050).

Almost surely, 2^138512163106 is an apocalyptic number.

138512163106 is a deficient number, since it is larger than the sum of its proper divisors (73232125694).

138512163106 is a wasteful number, since it uses less digits than its factorization.

138512163106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289409.

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 138512163106 its reverse (601361215831), we get a palindrome (739873378937).

The spelling of 138512163106 in words is "one hundred thirty-eight billion, five hundred twelve million, one hundred sixty-three thousand, one hundred six".