36173116645 has 8 divisors (see below), whose sum is σ = 43524116856. Its totient is φ = 28860908736.

The previous prime is 36173116633. The next prime is 36173116673. The reversal of 36173116645 is 54661137163.

It is a happy number.

36173116645 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 2126224321 + 34046892324 = 46111^2 + 184518^2 .

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 36173116645 - 2⁷ = 36173116517 is a prime.

It is a Duffinian number.

It is a congruent 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, 9696022 + ... + 9699751.

It is an arithmetic number, because the mean of its divisors is an integer number (5440514607).

Almost surely, 2^36173116645 is an apocalyptic number.

It is an amenable number.

36173116645 is a deficient number, since it is larger than the sum of its proper divisors (7351000211).

36173116645 is a wasteful number, since it uses less digits than its factorization.

36173116645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19396151.

The product of its digits is 272160, while the sum is 43.

The spelling of 36173116645 in words is "thirty-six billion, one hundred seventy-three million, one hundred sixteen thousand, six hundred forty-five".