66187160 has 48 divisors (see below), whose sum is σ = 161274240. Its totient is φ = 24435840.

The previous prime is 66187159. The next prime is 66187189. The reversal of 66187160 is 6178166.

It is a self number, because there is not a number n which added to its sum of digits gives 66187160.

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 11 ways as a sum of consecutive naturals, for example, 1865 + ... + 11655.

It is an arithmetic number, because the mean of its divisors is an integer number (3359880).

Almost surely, 2^66187160 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 66187160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80637120).

66187160 is an abundant number, since it is smaller than the sum of its proper divisors (95087080).

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

66187160 is a wasteful number, since it uses less digits than its factorization.

66187160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9828 (or 9811 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 66187160 is about 8135.5491517168. The cubic root of 66187160 is about 404.5056407777.

The spelling of 66187160 in words is "sixty-six million, one hundred eighty-seven thousand, one hundred sixty".