11652416621 has 2 divisors, whose sum is σ = 11652416622. Its totient is φ = 11652416620.

The previous prime is 11652416609. The next prime is 11652416651. The reversal of 11652416621 is 12661425611.

11652416621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11043067396 + 609349225 = 105086^2 + 24685^2 .

It is a cyclic number.

It is not a de Polignac number, because 11652416621 - 2³⁰ = 10578674797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11652416651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5826208310 + 5826208311.

It is an arithmetic number, because the mean of its divisors is an integer number (5826208311).

Almost surely, 2^11652416621 is an apocalyptic number.

It is an amenable number.

11652416621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11652416621 is an equidigital number, since it uses as much as digits as its factorization.

11652416621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The spelling of 11652416621 in words is "eleven billion, six hundred fifty-two million, four hundred sixteen thousand, six hundred twenty-one".