11665565520353 has 8 divisors (see below), whose sum is σ = 11671069641000. Its totient is φ = 11660061731328.

The previous prime is 11665565520283. The next prime is 11665565520361. The reversal of 11665565520353 is 35302556556611.

It can be written as a sum of positive squares in 4 ways, for example, as 9513103886224 + 2152461634129 = 3084332^2 + 1467127^2 .

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 11665565520353 - 2¹² = 11665565516257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11665565520295 and 11665565520304.

It is not an unprimeable number, because it can be changed into a prime (11665565520383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96198683 + ... + 96319871.

It is an arithmetic number, because the mean of its divisors is an integer number (1458883705125).

Almost surely, 2^{11665565520353} is an apocalyptic number.

It is an amenable number.

11665565520353 is a deficient number, since it is larger than the sum of its proper divisors (5504120647).

11665565520353 is a wasteful number, since it uses less digits than its factorization.

11665565520353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165811.

The product of its (nonzero) digits is 12150000, while the sum is 53.

The spelling of 11665565520353 in words is "eleven trillion, six hundred sixty-five billion, five hundred sixty-five million, five hundred twenty thousand, three hundred fifty-three".