20110111099966 has 64 divisors (see below), whose sum is σ = 30978526464000. Its totient is φ = 9788219400960.

The previous prime is 20110111099951. The next prime is 20110111100077. The reversal of 20110111099966 is 66999011101102.

It is a super-3 number, since 3×20110111099966³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10713963420 + ... + 10713965296.

It is an arithmetic number, because the mean of its divisors is an integer number (484039476000).

Almost surely, 2^{20110111099966} is an apocalyptic number.

20110111099966 is a deficient number, since it is larger than the sum of its proper divisors (10868415364034).

20110111099966 is a wasteful number, since it uses less digits than its factorization.

20110111099966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817.

The product of its (nonzero) digits is 52488, while the sum is 46.

The spelling of 20110111099966 in words is "twenty trillion, one hundred ten billion, one hundred eleven million, ninety-nine thousand, nine hundred sixty-six".