166827142075 has 24 divisors (see below), whose sum is σ = 225758831760. Its totient is φ = 121281945600.

The previous prime is 166827142063. The next prime is 166827142109. The reversal of 166827142075 is 570241728661.

It is not a de Polignac number, because 166827142075 - 2¹¹ = 166827140027 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 603771 + ... + 835579.

It is an arithmetic number, because the mean of its divisors is an integer number (9406617990).

Almost surely, 2^166827142075 is an apocalyptic number.

166827142075 is a deficient number, since it is larger than the sum of its proper divisors (58931689685).

166827142075 is a wasteful number, since it uses less digits than its factorization.

166827142075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234447 (or 234442 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 166827142075 in words is "one hundred sixty-six billion, eight hundred twenty-seven million, one hundred forty-two thousand, seventy-five".