1966119111 has 24 divisors (see below), whose sum is σ = 3156590736. Its totient is φ = 1169101440.

The previous prime is 1966119109. The next prime is 1966119137. The reversal of 1966119111 is 1119116691.

It is not a de Polignac number, because 1966119111 - 2¹ = 1966119109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966119151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182110 + ... + 192603.

It is an arithmetic number, because the mean of its divisors is an integer number (131524614).

Almost surely, 2^1966119111 is an apocalyptic number.

1966119111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1966119111 is a deficient number, since it is larger than the sum of its proper divisors (1190471625).

1966119111 is a wasteful number, since it uses less digits than its factorization.

1966119111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374783 (or 374780 counting only the distinct ones).

The product of its digits is 2916, while the sum is 36.

The square root of 1966119111 is about 44340.9417017726. The cubic root of 1966119111 is about 1252.7659521062.

The spelling of 1966119111 in words is "one billion, nine hundred sixty-six million, one hundred nineteen thousand, one hundred eleven".