11661167 has 12 divisors (see below), whose sum is σ = 14364000. Its totient is φ = 9406656.

The previous prime is 11661163. The next prime is 11661197. The reversal of 11661167 is 76116611.

It is not a de Polignac number, because 11661167 - 2² = 11661163 is a prime.

It is a super-3 number, since 3×11661167³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6167 + ... + 7832.

It is an arithmetic number, because the mean of its divisors is an integer number (1197000).

Almost surely, 2^11661167 is an apocalyptic number.

11661167 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11661167 is a deficient number, since it is larger than the sum of its proper divisors (2702833).

11661167 is a wasteful number, since it uses less digits than its factorization.

11661167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14030 (or 14023 counting only the distinct ones).

The product of its digits is 1512, while the sum is 29.

The square root of 11661167 is about 3414.8450916550. The cubic root of 11661167 is about 226.7674266079.

Adding to 11661167 its reverse (76116611), we get a palindrome (87777778).

The spelling of 11661167 in words is "eleven million, six hundred sixty-one thousand, one hundred sixty-seven".