11233169646781 has 2 divisors, whose sum is σ = 11233169646782. Its totient is φ = 11233169646780.

The previous prime is 11233169646763. The next prime is 11233169646821. The reversal of 11233169646781 is 18764696133211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6053858490681 + 5179311156100 = 2460459^2 + 2275810^2 .

It is a cyclic number.

It is not a de Polignac number, because 11233169646781 - 2⁹ = 11233169646269 is a prime.

It is a super-2 number, since 2×11233169646781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11233169646481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616584823390 + 5616584823391.

It is an arithmetic number, because the mean of its divisors is an integer number (5616584823391).

Almost surely, 2^{11233169646781} is an apocalyptic number.

It is an amenable number.

11233169646781 is a deficient number, since it is larger than the sum of its proper divisors (1).

11233169646781 is an equidigital number, since it uses as much as digits as its factorization.

11233169646781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 58.

The spelling of 11233169646781 in words is "eleven trillion, two hundred thirty-three billion, one hundred sixty-nine million, six hundred forty-six thousand, seven hundred eighty-one".