138558253305 has 16 divisors (see below), whose sum is σ = 221771252160. Its totient is φ = 73871719488.

The previous prime is 138558253261. The next prime is 138558253333. The reversal of 138558253305 is 503352855831.

It is not a de Polignac number, because 138558253305 - 2⁹ = 138558252793 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581910 + ... + 1667199.

It is an arithmetic number, because the mean of its divisors is an integer number (13860703260).

Almost surely, 2^138558253305 is an apocalyptic number.

138558253305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138558253305 is a deficient number, since it is larger than the sum of its proper divisors (83212998855).

138558253305 is a wasteful number, since it uses less digits than its factorization.

138558253305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251960.

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 138558253305 in words is "one hundred thirty-eight billion, five hundred fifty-eight million, two hundred fifty-three thousand, three hundred five".