66287160 has 160 divisors (see below), whose sum is σ = 228690000. Its totient is φ = 17210880.

The previous prime is 66287147. The next prime is 66287167. The reversal of 66287160 is 6178266.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66287167) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 132591 + ... + 133089.

Almost surely, 2^66287160 is an apocalyptic number.

66287160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66287160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114345000).

66287160 is an abundant number, since it is smaller than the sum of its proper divisors (162402840).

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

66287160 is a wasteful number, since it uses less digits than its factorization.

66287160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 66287160 is about 8141.6926986960. The cubic root of 66287160 is about 404.7092563499.

The spelling of 66287160 in words is "sixty-six million, two hundred eighty-seven thousand, one hundred sixty".