66667160 has 64 divisors (see below), whose sum is σ = 172134720. Its totient is φ = 22763520.

The previous prime is 66667151. The next prime is 66667193. The reversal of 66667160 is 6176666.

It is a happy number.

66667160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 127700 + ... + 128220.

It is an arithmetic number, because the mean of its divisors is an integer number (2689605).

Almost surely, 2^66667160 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 66667160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86067360).

66667160 is an abundant number, since it is smaller than the sum of its proper divisors (105467560).

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

66667160 is a wasteful number, since it uses less digits than its factorization.

66667160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 66667160 is about 8164.9960195949. The cubic root of 66667160 is about 405.4811332201.

The spelling of 66667160 in words is "sixty-six million, six hundred sixty-seven thousand, one hundred sixty".