11061644647 has 2 divisors, whose sum is σ = 11061644648. Its totient is φ = 11061644646.

The previous prime is 11061644639. The next prime is 11061644663. The reversal of 11061644647 is 74644616011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11061644647 - 2³ = 11061644639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11061644147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530822323 + 5530822324.

It is an arithmetic number, because the mean of its divisors is an integer number (5530822324).

Almost surely, 2^11061644647 is an apocalyptic number.

11061644647 is a deficient number, since it is larger than the sum of its proper divisors (1).

11061644647 is an equidigital number, since it uses as much as digits as its factorization.

11061644647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 11061644647 in words is "eleven billion, sixty-one million, six hundred forty-four thousand, six hundred forty-seven".