165125610432425 has 12 divisors (see below), whose sum is σ = 204902115633600. Its totient is φ = 132006063379920.

The previous prime is 165125610432413. The next prime is 165125610432443. The reversal of 165125610432425 is 524234016521561.

It is a happy number.

It is not a de Polignac number, because 165125610432425 - 2¹⁶ = 165125610366889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165125610432425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2360588477 + ... + 2360658426.

It is an arithmetic number, because the mean of its divisors is an integer number (17075176302800).

Almost surely, 2^{165125610432425} is an apocalyptic number.

It is an amenable number.

165125610432425 is a deficient number, since it is larger than the sum of its proper divisors (39776505201175).

165125610432425 is a wasteful number, since it uses less digits than its factorization.

165125610432425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721248312 (or 4721248307 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

Adding to 165125610432425 its reverse (524234016521561), we get a palindrome (689359626953986).

The spelling of 165125610432425 in words is "one hundred sixty-five trillion, one hundred twenty-five billion, six hundred ten million, four hundred thirty-two thousand, four hundred twenty-five".