166138082 has 32 divisors (see below), whose sum is σ = 276696000. Its totient is φ = 74807040.

The previous prime is 166138081. The next prime is 166138097. The reversal of 166138082 is 280831661.

It is not an unprimeable number, because it can be changed into a prime (166138081) 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 in 15 ways as a sum of consecutive naturals, for example, 369794 + ... + 370242.

It is an arithmetic number, because the mean of its divisors is an integer number (8646750).

Almost surely, 2^166138082 is an apocalyptic number.

166138082 is a deficient number, since it is larger than the sum of its proper divisors (110557918).

166138082 is a wasteful number, since it uses less digits than its factorization.

166138082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 166138082 is about 12889.4562336819. The cubic root of 166138082 is about 549.7388093156.

The spelling of 166138082 in words is "one hundred sixty-six million, one hundred thirty-eight thousand, eighty-two".