11661050061166 has 8 divisors (see below), whose sum is σ = 19081718281944. Its totient is φ = 5300477300520.

The previous prime is 11661050061091. The next prime is 11661050061187. The reversal of 11661050061166 is 66116005016611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265023865005 + ... + 265023865048.

It is an arithmetic number, because the mean of its divisors is an integer number (2385214785243).

Almost surely, 2^{11661050061166} is an apocalyptic number.

11661050061166 is a deficient number, since it is larger than the sum of its proper divisors (7420668220778).

11661050061166 is a wasteful number, since it uses less digits than its factorization.

11661050061166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530047730066.

The product of its (nonzero) digits is 38880, while the sum is 40.

Adding to 11661050061166 its reverse (66116005016611), we get a palindrome (77777055077777).

The spelling of 11661050061166 in words is "eleven trillion, six hundred sixty-one billion, fifty million, sixty-one thousand, one hundred sixty-six".