11656213363 has 2 divisors, whose sum is σ = 11656213364. Its totient is φ = 11656213362.

The previous prime is 11656213297. The next prime is 11656213391. The reversal of 11656213363 is 36331265611.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (36331265611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11656213363 - 2⁹ = 11656212851 is a prime.

It is not a weakly prime, because it can be changed into another prime (11656213663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5828106681 + 5828106682.

It is an arithmetic number, because the mean of its divisors is an integer number (5828106682).

Almost surely, 2^11656213363 is an apocalyptic number.

11656213363 is a deficient number, since it is larger than the sum of its proper divisors (1).

11656213363 is an equidigital number, since it uses as much as digits as its factorization.

11656213363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

Adding to 11656213363 its reverse (36331265611), we get a palindrome (47987478974).

The spelling of 11656213363 in words is "eleven billion, six hundred fifty-six million, two hundred thirteen thousand, three hundred sixty-three".