10665051111166 has 4 divisors (see below), whose sum is σ = 15997576666752. Its totient is φ = 5332525555582.

The previous prime is 10665051111161. The next prime is 10665051111217. The reversal of 10665051111166 is 66111115056601.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×10665051111166² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10665051111161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2666262777790 + ... + 2666262777793.

It is an arithmetic number, because the mean of its divisors is an integer number (3999394166688).

Almost surely, 2^{10665051111166} is an apocalyptic number.

10665051111166 is a deficient number, since it is larger than the sum of its proper divisors (5332525555586).

10665051111166 is an equidigital number, since it uses as much as digits as its factorization.

10665051111166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332525555585.

The product of its (nonzero) digits is 32400, while the sum is 40.

Adding to 10665051111166 its reverse (66111115056601), we get a palindrome (76776166167767).

The spelling of 10665051111166 in words is "ten trillion, six hundred sixty-five billion, fifty-one million, one hundred eleven thousand, one hundred sixty-six".