138140024466 has 16 divisors (see below), whose sum is σ = 278814729600. Its totient is φ = 45624228048.

The previous prime is 138140024441. The next prime is 138140024467. The reversal of 138140024466 is 664420041831.

It is not an unprimeable number, because it can be changed into a prime (138140024467) 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 7 ways as a sum of consecutive naturals, for example, 105610986 + ... + 105612293.

It is an arithmetic number, because the mean of its divisors is an integer number (17425920600).

Almost surely, 2^138140024466 is an apocalyptic number.

138140024466 is an abundant number, since it is smaller than the sum of its proper divisors (140674705134).

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

138140024466 is a wasteful number, since it uses less digits than its factorization.

138140024466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211223393.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 138140024466 in words is "one hundred thirty-eight billion, one hundred forty million, twenty-four thousand, four hundred sixty-six".