66265264 has 40 divisors (see below), whose sum is σ = 140897232. Its totient is φ = 30001920.

The previous prime is 66265237. The next prime is 66265271. The reversal of 66265264 is 46256266.

It is a happy 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, 8019 + ... + 14029.

Almost surely, 2^66265264 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 66265264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70448616).

66265264 is an abundant number, since it is smaller than the sum of its proper divisors (74631968).

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

66265264 is a wasteful number, since it uses less digits than its factorization.

66265264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6085 (or 6079 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 66265264 is about 8140.3479041132. The cubic root of 66265264 is about 404.6646902038.

The spelling of 66265264 in words is "sixty-six million, two hundred sixty-five thousand, two hundred sixty-four".