166415135423133 has 8 divisors (see below), whose sum is σ = 231534101458368. Its totient is φ = 106119796501664.

The previous prime is 166415135423129. The next prime is 166415135423153. The reversal of 166415135423133 is 331324531514661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166415135423133 - 2² = 166415135423129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166415135423113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205906778360 + ... + 1205906778497.

It is an arithmetic number, because the mean of its divisors is an integer number (28941762682296).

Almost surely, 2^{166415135423133} is an apocalyptic number.

It is an amenable number.

166415135423133 is a deficient number, since it is larger than the sum of its proper divisors (65118966035235).

166415135423133 is a wasteful number, since it uses less digits than its factorization.

166415135423133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411813556883.

The product of its digits is 2332800, while the sum is 48.

Adding to 166415135423133 its reverse (331324531514661), we get a palindrome (497739666937794).

The spelling of 166415135423133 in words is "one hundred sixty-six trillion, four hundred fifteen billion, one hundred thirty-five million, four hundred twenty-three thousand, one hundred thirty-three".