11617165560485 has 4 divisors (see below), whose sum is σ = 13940598672588. Its totient is φ = 9293732448384.

The previous prime is 11617165560443. The next prime is 11617165560487. The reversal of 11617165560485 is 58406556171611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5435467925281 + 6181697635204 = 2331409^2 + 2486302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11617165560485 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11617165560485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11617165560487) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1161716556044 + ... + 1161716556053.

It is an arithmetic number, because the mean of its divisors is an integer number (3485149668147).

Almost surely, 2^{11617165560485} is an apocalyptic number.

It is an amenable number.

11617165560485 is a deficient number, since it is larger than the sum of its proper divisors (2323433112103).

11617165560485 is an equidigital number, since it uses as much as digits as its factorization.

11617165560485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323433112102.

The product of its (nonzero) digits is 6048000, while the sum is 56.

The spelling of 11617165560485 in words is "eleven trillion, six hundred seventeen billion, one hundred sixty-five million, five hundred sixty thousand, four hundred eighty-five".