166116004 has 12 divisors (see below), whose sum is σ = 290811724. Its totient is φ = 83026944.

The previous prime is 166115987. The next prime is 166116019. The reversal of 166116004 is 400611661.

It can be written as a sum of positive squares in 2 ways, for example, as 24029604 + 142086400 = 4902^2 + 11920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 166116004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7684 + ... + 19780.

Almost surely, 2^166116004 is an apocalyptic number.

It is an amenable number.

166116004 is a deficient number, since it is larger than the sum of its proper divisors (124695720).

166116004 is a wasteful number, since it uses less digits than its factorization.

166116004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15534 (or 15532 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 166116004 is about 12888.5997687879. The cubic root of 166116004 is about 549.7144567390.

Adding to 166116004 its reverse (400611661), we get a palindrome (566727665).

The spelling of 166116004 in words is "one hundred sixty-six million, one hundred sixteen thousand, four".