36656665 has 8 divisors (see below), whose sum is σ = 45061128. Its totient is φ = 28609920.

The previous prime is 36656657. The next prime is 36656689. The reversal of 36656665 is 56665663.

It is a happy number.

36656665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4756761 + 31899904 = 2181^2 + 5648^2 .

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

It is not a de Polignac number, because 36656665 - 2³ = 36656657 is a prime.

It is a super-4 number, since 4×36656665⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89202 + ... + 89611.

It is an arithmetic number, because the mean of its divisors is an integer number (5632641).

Almost surely, 2^36656665 is an apocalyptic number.

It is an amenable number.

36656665 is a deficient number, since it is larger than the sum of its proper divisors (8404463).

36656665 is a wasteful number, since it uses less digits than its factorization.

36656665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178859.

The product of its digits is 583200, while the sum is 43.

The square root of 36656665 is about 6054.4747914249. The cubic root of 36656665 is about 332.1882883420.

The spelling of 36656665 in words is "thirty-six million, six hundred fifty-six thousand, six hundred sixty-five".