138881544160 has 48 divisors (see below), whose sum is σ = 329176519056. Its totient is φ = 55371644928.

The previous prime is 138881544157. The next prime is 138881544167. The reversal of 138881544160 is 61445188831.

138881544160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138881544167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364577 + ... + 1462816.

It is an arithmetic number, because the mean of its divisors is an integer number (6857844147).

Almost surely, 2^138881544160 is an apocalyptic number.

138881544160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138881544160 is an abundant number, since it is smaller than the sum of its proper divisors (190294974896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138881544160 is a wasteful number, since it uses less digits than its factorization.

138881544160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827715 (or 2827707 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The spelling of 138881544160 in words is "one hundred thirty-eight billion, eight hundred eighty-one million, five hundred forty-four thousand, one hundred sixty".