11662670647 has 2 divisors, whose sum is σ = 11662670648. Its totient is φ = 11662670646.

The previous prime is 11662670639. The next prime is 11662670659. The reversal of 11662670647 is 74607626611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11662670647 - 2³ = 11662670639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11662670597 and 11662670606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11662670447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5831335323 + 5831335324.

It is an arithmetic number, because the mean of its divisors is an integer number (5831335324).

Almost surely, 2^11662670647 is an apocalyptic number.

11662670647 is a deficient number, since it is larger than the sum of its proper divisors (1).

11662670647 is an equidigital number, since it uses as much as digits as its factorization.

11662670647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 11662670647 in words is "eleven billion, six hundred sixty-two million, six hundred seventy thousand, six hundred forty-seven".