138234124660 has 24 divisors (see below), whose sum is σ = 290682395136. Its totient is φ = 55219224480.

The previous prime is 138234124657. The next prime is 138234124673. The reversal of 138234124660 is 66421432831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4636356 + ... + 4666075.

It is an arithmetic number, because the mean of its divisors is an integer number (12111766464).

Almost surely, 2^138234124660 is an apocalyptic number.

138234124660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138234124660 is an abundant number, since it is smaller than the sum of its proper divisors (152448270476).

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

138234124660 is a wasteful number, since it uses less digits than its factorization.

138234124660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303183 (or 9303181 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 138234124660 in words is "one hundred thirty-eight billion, two hundred thirty-four million, one hundred twenty-four thousand, six hundred sixty".