11566455679 has 2 divisors, whose sum is σ = 11566455680. Its totient is φ = 11566455678.

The previous prime is 11566455619. The next prime is 11566455701. The reversal of 11566455679 is 97655466511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11566455679 - 2¹¹ = 11566453631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11566455619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5783227839 + 5783227840.

It is an arithmetic number, because the mean of its divisors is an integer number (5783227840).

Almost surely, 2^11566455679 is an apocalyptic number.

11566455679 is a deficient number, since it is larger than the sum of its proper divisors (1).

11566455679 is an equidigital number, since it uses as much as digits as its factorization.

11566455679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804000, while the sum is 55.

The spelling of 11566455679 in words is "eleven billion, five hundred sixty-six million, four hundred fifty-five thousand, six hundred seventy-nine".