166041342125 has 16 divisors (see below), whose sum is σ = 207284431536. Its totient is φ = 132791512000.

The previous prime is 166041341987. The next prime is 166041342143. The reversal of 166041342125 is 521243140661.

166041342125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 58962523684 + 107078818441 = 242822^2 + 327229^2 .

It is not a de Polignac number, because 166041342125 - 2¹⁰ = 166041341101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 196427 + ... + 608823.

It is an arithmetic number, because the mean of its divisors is an integer number (12955276971).

Almost surely, 2^166041342125 is an apocalyptic number.

It is an amenable number.

166041342125 is a deficient number, since it is larger than the sum of its proper divisors (41243089411).

166041342125 is an equidigital number, since it uses as much as digits as its factorization.

166041342125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415633 (or 415623 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 166041342125 its reverse (521243140661), we get a palindrome (687284482786).

The spelling of 166041342125 in words is "one hundred sixty-six billion, forty-one million, three hundred forty-two thousand, one hundred twenty-five".