11164216361 has 4 divisors (see below), whose sum is σ = 11165363412. Its totient is φ = 11163069312.

The previous prime is 11164216351. The next prime is 11164216367. The reversal of 11164216361 is 16361246111.

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 7300848025 + 3863368336 = 85445^2 + 62156^2 .

It is a cyclic number.

It is not a de Polignac number, because 11164216361 - 2²² = 11160022057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11164216367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558800 + ... + 578433.

It is an arithmetic number, because the mean of its divisors is an integer number (2791340853).

Almost surely, 2^11164216361 is an apocalyptic number.

It is an amenable number.

11164216361 is a deficient number, since it is larger than the sum of its proper divisors (1147051).

11164216361 is an equidigital number, since it uses as much as digits as its factorization.

11164216361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147050.

The product of its digits is 5184, while the sum is 32.

The spelling of 11164216361 in words is "eleven billion, one hundred sixty-four million, two hundred sixteen thousand, three hundred sixty-one".