66226365 has 12 divisors (see below), whose sum is σ = 114792444. Its totient is φ = 35320704.

The previous prime is 66226333. The next prime is 66226367. The reversal of 66226365 is 56362266.

It can be written as a sum of positive squares in 2 ways, for example, as 8982009 + 57244356 = 2997^2 + 7566^2 .

It is not a de Polignac number, because 66226365 - 2⁵ = 66226333 is a prime.

It is a super-2 number, since 2×66226365² = 8771862842226450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66226367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 735804 + ... + 735893.

It is an arithmetic number, because the mean of its divisors is an integer number (9566037).

Almost surely, 2^66226365 is an apocalyptic number.

It is an amenable number.

66226365 is a deficient number, since it is larger than the sum of its proper divisors (48566079).

66226365 is a wasteful number, since it uses less digits than its factorization.

66226365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471708 (or 1471705 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 66226365 is about 8137.9582820263. The cubic root of 66226365 is about 404.5854926879.

The spelling of 66226365 in words is "sixty-six million, two hundred twenty-six thousand, three hundred sixty-five".