11566651627 has 2 divisors, whose sum is σ = 11566651628. Its totient is φ = 11566651626.

The previous prime is 11566651549. The next prime is 11566651673. The reversal of 11566651627 is 72615666511.

It is an a-pointer prime, because the next prime (11566651673) can be obtained adding 11566651627 to its sum of digits (46).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11566651627 - 2¹⁵ = 11566618859 is a prime.

It is not a weakly prime, because it can be changed into another prime (11566651697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5783325813 + 5783325814.

It is an arithmetic number, because the mean of its divisors is an integer number (5783325814).

Almost surely, 2^11566651627 is an apocalyptic number.

11566651627 is a deficient number, since it is larger than the sum of its proper divisors (1).

11566651627 is an equidigital number, since it uses as much as digits as its factorization.

11566651627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 46.

The spelling of 11566651627 in words is "eleven billion, five hundred sixty-six million, six hundred fifty-one thousand, six hundred twenty-seven".