11666351 has 2 divisors, whose sum is σ = 11666352. Its totient is φ = 11666350.

The previous prime is 11666339. The next prime is 11666353. The reversal of 11666351 is 15366611.

11666351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11666351 - 2¹⁸ = 11404207 is a prime.

It is a super-2 number, since 2×11666351² = 272207491310402, which contains 22 as substring.

Together with 11666353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11666353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833175 + 5833176.

It is an arithmetic number, because the mean of its divisors is an integer number (5833176).

Almost surely, 2^11666351 is an apocalyptic number.

11666351 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666351 is an equidigital number, since it uses as much as digits as its factorization.

11666351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 11666351 is about 3415.6040461388. The cubic root of 11666351 is about 226.8010249656.

The spelling of 11666351 in words is "eleven million, six hundred sixty-six thousand, three hundred fifty-one".