66916160 has 56 divisors (see below), whose sum is σ = 161422080. Its totient is φ = 26417664.

The previous prime is 66916159. The next prime is 66916181. The reversal of 66916160 is 6161966.

It is a self number, because there is not a number n which added to its sum of digits gives 66916160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23957 + ... + 26603.

Almost surely, 2^66916160 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 66916160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80711040).

66916160 is an abundant number, since it is smaller than the sum of its proper divisors (94505920).

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

66916160 is a wasteful number, since it uses less digits than its factorization.

66916160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743 (or 2733 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 66916160 is about 8180.2298256223. The cubic root of 66916160 is about 405.9853262996.

It can be divided in two parts, 66916 and 160, that added together give a palindrome (67076).

The spelling of 66916160 in words is "sixty-six million, nine hundred sixteen thousand, one hundred sixty".