11690266691 has 2 divisors, whose sum is σ = 11690266692. Its totient is φ = 11690266690.

The previous prime is 11690266673. The next prime is 11690266723. The reversal of 11690266691 is 19666209611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11690266691 - 2¹⁰ = 11690265667 is a prime.

It is a super-3 number, since 3×11690266691³ (a number of 31 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11690260691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5845133345 + 5845133346.

It is an arithmetic number, because the mean of its divisors is an integer number (5845133346).

Almost surely, 2^11690266691 is an apocalyptic number.

11690266691 is a deficient number, since it is larger than the sum of its proper divisors (1).

11690266691 is an equidigital number, since it uses as much as digits as its factorization.

11690266691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 11690266691 in words is "eleven billion, six hundred ninety million, two hundred sixty-six thousand, six hundred ninety-one".