166129368 has 64 divisors (see below), whose sum is σ = 440812800. Its totient is φ = 52060800.

The previous prime is 166129357. The next prime is 166129399. The reversal of 166129368 is 863921661.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 30018 + ... + 35118.

It is an arithmetic number, because the mean of its divisors is an integer number (6887700).

Almost surely, 2^166129368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166129368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220406400).

166129368 is an abundant number, since it is smaller than the sum of its proper divisors (274683432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166129368 is a wasteful number, since it uses less digits than its factorization.

166129368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5192 (or 5188 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 166129368 is about 12889.1182010252. The cubic root of 166129368 is about 549.7291978171.

The spelling of 166129368 in words is "one hundred sixty-six million, one hundred twenty-nine thousand, three hundred sixty-eight".