138560016225 has 24 divisors (see below), whose sum is σ = 229111353792. Its totient is φ = 73890462400.

The previous prime is 138560016191. The next prime is 138560016239. The reversal of 138560016225 is 522610065831.

It is not a de Polignac number, because 138560016225 - 2⁷ = 138560016097 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 609379 + ... + 805271.

It is an arithmetic number, because the mean of its divisors is an integer number (9546306408).

Almost surely, 2^138560016225 is an apocalyptic number.

138560016225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138560016225 is a deficient number, since it is larger than the sum of its proper divisors (90551337567).

138560016225 is a wasteful number, since it uses less digits than its factorization.

138560016225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205337 (or 205332 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 138560016225 in words is "one hundred thirty-eight billion, five hundred sixty million, sixteen thousand, two hundred twenty-five".