166530522 has 16 divisors (see below), whose sum is σ = 333704160. Its totient is φ = 55402992.

The previous prime is 166530467. The next prime is 166530547. The reversal of 166530522 is 225035661.

It is a self number, because there is not a number n which added to its sum of digits gives 166530522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23397 + ... + 29672.

It is an arithmetic number, because the mean of its divisors is an integer number (20856510).

Almost surely, 2^166530522 is an apocalyptic number.

166530522 is an abundant number, since it is smaller than the sum of its proper divisors (167173638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166530522 is a wasteful number, since it uses less digits than its factorization.

166530522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53597.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 166530522 is about 12904.6705498436. The cubic root of 166530522 is about 550.1713207341.

The spelling of 166530522 in words is "one hundred sixty-six million, five hundred thirty thousand, five hundred twenty-two".