159966522 has 32 divisors (see below), whose sum is σ = 361316160. Its totient is φ = 52446960.

The previous prime is 159966497. The next prime is 159966551. The reversal of 159966522 is 225669951.

It is a happy number.

159966522 is a `hidden beast` number, since 1 + 599 + 6 + 6 + 52 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20988 + ... + 27575.

It is an arithmetic number, because the mean of its divisors is an integer number (11291130).

Almost surely, 2^159966522 is an apocalyptic number.

159966522 is an abundant number, since it is smaller than the sum of its proper divisors (201349638).

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

159966522 is a wasteful number, since it uses less digits than its factorization.

159966522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48635 (or 48629 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 159966522 is about 12647.7872372997. The cubic root of 159966522 is about 542.8456568141.

It can be divided in two parts, 1599 and 66522, that added together give a square (68121 = 261²).

The spelling of 159966522 in words is "one hundred fifty-nine million, nine hundred sixty-six thousand, five hundred twenty-two".