166214036 has 6 divisors (see below), whose sum is σ = 290874570. Its totient is φ = 83107016.

The previous prime is 166214023. The next prime is 166214039. The reversal of 166214036 is 630412661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 139381636 + 26832400 = 11806^2 + 5180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166214039) by changing a digit.

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 as a sum of consecutive naturals, namely, 20776751 + ... + 20776758.

It is an arithmetic number, because the mean of its divisors is an integer number (48479095).

Almost surely, 2^166214036 is an apocalyptic number.

It is an amenable number.

166214036 is a deficient number, since it is larger than the sum of its proper divisors (124660534).

166214036 is a wasteful number, since it uses less digits than its factorization.

166214036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41553513 (or 41553511 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 166214036 is about 12892.4022586948. The cubic root of 166214036 is about 549.8225719696.

Adding to 166214036 its reverse (630412661), we get a palindrome (796626697).

The spelling of 166214036 in words is "one hundred sixty-six million, two hundred fourteen thousand, thirty-six".