166522135 has 16 divisors (see below), whose sum is σ = 218415456. Its totient is φ = 121131648.

The previous prime is 166522127. The next prime is 166522141. The reversal of 166522135 is 531225661.

It is a cyclic number.

It is not a de Polignac number, because 166522135 - 2³ = 166522127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166522097 and 166522106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14764 + ... + 23473.

It is an arithmetic number, because the mean of its divisors is an integer number (13650966).

Almost surely, 2^166522135 is an apocalyptic number.

166522135 is a deficient number, since it is larger than the sum of its proper divisors (51893321).

166522135 is a wasteful number, since it uses less digits than its factorization.

166522135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38322.

The product of its digits is 10800, while the sum is 31.

The square root of 166522135 is about 12904.3455858869. The cubic root of 166522135 is about 550.1620844606.

Adding to 166522135 its reverse (531225661), we get a palindrome (697747796).

The spelling of 166522135 in words is "one hundred sixty-six million, five hundred twenty-two thousand, one hundred thirty-five".