11669851 has 2 divisors, whose sum is σ = 11669852. Its totient is φ = 11669850.

The previous prime is 11669839. The next prime is 11669869. The reversal of 11669851 is 15896611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11669851 - 2¹³ = 11661659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11669851.

It is not a weakly prime, because it can be changed into another prime (11669821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5834925 + 5834926.

It is an arithmetic number, because the mean of its divisors is an integer number (5834926).

Almost surely, 2^11669851 is an apocalyptic number.

11669851 is a deficient number, since it is larger than the sum of its proper divisors (1).

11669851 is an equidigital number, since it uses as much as digits as its factorization.

11669851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 37.

The square root of 11669851 is about 3416.1163621867. The cubic root of 11669851 is about 226.8237034141.

The spelling of 11669851 in words is "eleven million, six hundred sixty-nine thousand, eight hundred fifty-one".