166129016 has 8 divisors (see below), whose sum is σ = 311491920. Its totient is φ = 83064504.

The previous prime is 166129013. The next prime is 166129037. The reversal of 166129016 is 610921661.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166129013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10383056 + ... + 10383071.

It is an arithmetic number, because the mean of its divisors is an integer number (38936490).

Almost surely, 2^166129016 is an apocalyptic number.

It is an amenable number.

166129016 is a deficient number, since it is larger than the sum of its proper divisors (145362904).

166129016 is a wasteful number, since it uses less digits than its factorization.

166129016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20766133 (or 20766129 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 166129016 is about 12889.1045460885. The cubic root of 166129016 is about 549.7288095558.

The spelling of 166129016 in words is "one hundred sixty-six million, one hundred twenty-nine thousand, sixteen".