11664492647 has 2 divisors, whose sum is σ = 11664492648. Its totient is φ = 11664492646.

The previous prime is 11664492643. The next prime is 11664492677. The reversal of 11664492647 is 74629446611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11664492647 - 2² = 11664492643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11664492595 and 11664492604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11664492641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5832246323 + 5832246324.

It is an arithmetic number, because the mean of its divisors is an integer number (5832246324).

Almost surely, 2^11664492647 is an apocalyptic number.

11664492647 is a deficient number, since it is larger than the sum of its proper divisors (1).

11664492647 is an equidigital number, since it uses as much as digits as its factorization.

11664492647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 50.

The spelling of 11664492647 in words is "eleven billion, six hundred sixty-four million, four hundred ninety-two thousand, six hundred forty-seven".