66018160 has 120 divisors (see below), whose sum is σ = 175636080. Its totient is φ = 23003136.

The previous prime is 66018149. The next prime is 66018163. The reversal of 66018160 is 6181066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66018163) 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 in 23 ways as a sum of consecutive naturals, for example, 256752 + ... + 257008.

It is an arithmetic number, because the mean of its divisors is an integer number (1463634).

Almost surely, 2^66018160 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 66018160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87818040).

66018160 is an abundant number, since it is smaller than the sum of its proper divisors (109617920).

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

66018160 is a wasteful number, since it uses less digits than its factorization.

66018160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 66018160 is about 8125.1559985024. The cubic root of 66018160 is about 404.1610637737.

The spelling of 66018160 in words is "sixty-six million, eighteen thousand, one hundred sixty".