138181706336 has 24 divisors (see below), whose sum is σ = 275876861904. Its totient is φ = 68117741440.

The previous prime is 138181706303. The next prime is 138181706347. The reversal of 138181706336 is 633607181831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30407435 + ... + 30411978.

It is an arithmetic number, because the mean of its divisors is an integer number (11494869246).

Almost surely, 2^138181706336 is an apocalyptic number.

138181706336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138181706336 is a deficient number, since it is larger than the sum of its proper divisors (137695155568).

138181706336 is an equidigital number, since it uses as much as digits as its factorization.

138181706336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60819494 (or 60819486 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 138181706336 in words is "one hundred thirty-eight billion, one hundred eighty-one million, seven hundred six thousand, three hundred thirty-six".