36667561 has 8 divisors (see below), whose sum is σ = 41955264. Its totient is φ = 31392240.

The previous prime is 36667531. The next prime is 36667577. The reversal of 36667561 is 16576663.

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

It is a cyclic number.

It is not a de Polignac number, because 36667561 - 2¹¹ = 36665513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36667531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4506 + ... + 9676.

It is an arithmetic number, because the mean of its divisors is an integer number (5244408).

Almost surely, 2^36667561 is an apocalyptic number.

It is an amenable number.

36667561 is a deficient number, since it is larger than the sum of its proper divisors (5287703).

36667561 is a wasteful number, since it uses less digits than its factorization.

36667561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191.

The product of its digits is 136080, while the sum is 40.

The square root of 36667561 is about 6055.3745548892. The cubic root of 36667561 is about 332.2211988193.

The spelling of 36667561 in words is "thirty-six million, six hundred sixty-seven thousand, five hundred sixty-one".