166819162 has 16 divisors (see below), whose sum is σ = 260520552. Its totient is φ = 80040960.

The previous prime is 166819141. The next prime is 166819171. The reversal of 166819162 is 261918661.

It can be written as a sum of positive squares in 4 ways, for example, as 162027441 + 4791721 = 12729^2 + 2189^2 .

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, 10039 + ... + 20842.

Almost surely, 2^166819162 is an apocalyptic number.

166819162 is a deficient number, since it is larger than the sum of its proper divisors (93701390).

166819162 is a wasteful number, since it uses less digits than its factorization.

166819162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30993.

The product of its digits is 31104, while the sum is 40.

The square root of 166819162 is about 12915.8492558562. The cubic root of 166819162 is about 550.4889998168.

The spelling of 166819162 in words is "one hundred sixty-six million, eight hundred nineteen thousand, one hundred sixty-two".