36561603545 has 8 divisors (see below), whose sum is σ = 43875992520. Its totient is φ = 29247904000.

The previous prime is 36561603467. The next prime is 36561603563. The reversal of 36561603545 is 54530616563.

It can be written as a sum of positive squares in 4 ways, for example, as 4773566281 + 31788037264 = 69091^2 + 178292^2 .

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

It is not a de Polignac number, because 36561603545 - 2²² = 36557409241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36561603496 and 36561603505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47456 + ... + 274545.

It is an arithmetic number, because the mean of its divisors is an integer number (5484499065).

Almost surely, 2^36561603545 is an apocalyptic number.

It is an amenable number.

36561603545 is a deficient number, since it is larger than the sum of its proper divisors (7314388975).

36561603545 is a wasteful number, since it uses less digits than its factorization.

36561603545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344715.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 36561603545 in words is "thirty-six billion, five hundred sixty-one million, six hundred three thousand, five hundred forty-five".