66268360 has 64 divisors (see below), whose sum is σ = 153734400. Its totient is φ = 25698816.

The previous prime is 66268351. The next prime is 66268361. The reversal of 66268360 is 6386266.

It is not an unprimeable number, because it can be changed into a prime (66268361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211564 + ... + 211876.

It is an arithmetic number, because the mean of its divisors is an integer number (2402100).

Almost surely, 2^66268360 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 66268360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76867200).

66268360 is an abundant number, since it is smaller than the sum of its proper divisors (87466040).

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

66268360 is a wasteful number, since it uses less digits than its factorization.

66268360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 66268360 is about 8140.5380657546. The cubic root of 66268360 is about 404.6709922606.

The spelling of 66268360 in words is "sixty-six million, two hundred sixty-eight thousand, three hundred sixty".