11666061607 has 2 divisors, whose sum is σ = 11666061608. Its totient is φ = 11666061606.

The previous prime is 11666061593. The next prime is 11666061613. The reversal of 11666061607 is 70616066611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11666061607 - 2⁷ = 11666061479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11666061607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11666061677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833030803 + 5833030804.

It is an arithmetic number, because the mean of its divisors is an integer number (5833030804).

Almost surely, 2^11666061607 is an apocalyptic number.

11666061607 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666061607 is an equidigital number, since it uses as much as digits as its factorization.

11666061607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 11666061607 in words is "eleven billion, six hundred sixty-six million, sixty-one thousand, six hundred seven".