138558116853 has 48 divisors (see below), whose sum is σ = 221496352896. Its totient is φ = 82910977920.

The previous prime is 138558116849. The next prime is 138558116867. The reversal of 138558116853 is 358611855831.

138558116853 is a `hidden beast` number, since 1 + 3 + 8 + 5 + 581 + 1 + 6 + 8 + 53 = 666.

It is not a de Polignac number, because 138558116853 - 2² = 138558116849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138558116853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138558114853) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 7726968 + ... + 7744878.

It is an arithmetic number, because the mean of its divisors is an integer number (4614507352).

Almost surely, 2^138558116853 is an apocalyptic number.

138558116853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138558116853 is a deficient number, since it is larger than the sum of its proper divisors (82938236043).

138558116853 is a wasteful number, since it uses less digits than its factorization.

138558116853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19754 (or 19751 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 54.

The spelling of 138558116853 in words is "one hundred thirty-eight billion, five hundred fifty-eight million, one hundred sixteen thousand, eight hundred fifty-three".