66010265 has 8 divisors (see below), whose sum is σ = 79272648. Its totient is φ = 52768000.

The previous prime is 66010261. The next prime is 66010271. The reversal of 66010265 is 56201066.

It can be written as a sum of positive squares in 4 ways, for example, as 1577536 + 64432729 = 1256^2 + 8027^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66010265 - 2² = 66010261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66010261) 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 7 ways as a sum of consecutive naturals, for example, 3515 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (9909081).

Almost surely, 2^66010265 is an apocalyptic number.

It is an amenable number.

66010265 is a deficient number, since it is larger than the sum of its proper divisors (13262383).

66010265 is a wasteful number, since it uses less digits than its factorization.

66010265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10059.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 66010265 is about 8124.6701471506. The cubic root of 66010265 is about 404.1449521523.

The spelling of 66010265 in words is "sixty-six million, ten thousand, two hundred sixty-five".