36646604045 has 4 divisors (see below), whose sum is σ = 43975924860. Its totient is φ = 29317283232.

The previous prime is 36646603997. The next prime is 36646604077. The reversal of 36646604045 is 54040664663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54040664663 = 92821 ⋅582203.

It can be written as a sum of positive squares in 2 ways, for example, as 13977387076 + 22669216969 = 118226^2 + 150563^2 .

It is a cyclic number.

It is not a de Polignac number, because 36646604045 - 2¹² = 36646599949 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 36646603987 and 36646604005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3664660400 + ... + 3664660409.

It is an arithmetic number, because the mean of its divisors is an integer number (10993981215).

Almost surely, 2^36646604045 is an apocalyptic number.

It is an amenable number.

36646604045 is a deficient number, since it is larger than the sum of its proper divisors (7329320815).

36646604045 is an equidigital number, since it uses as much as digits as its factorization.

36646604045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7329320814.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 36646604045 in words is "thirty-six billion, six hundred forty-six million, six hundred four thousand, forty-five".