1107805806666 has 48 divisors (see below), whose sum is σ = 2585629827144. Its totient is φ = 340764475392.

The previous prime is 1107805806629. The next prime is 1107805806697. The reversal of 1107805806666 is 6666085087011.

It can be written as a sum of positive squares in 4 ways, for example, as 570597433641 + 537208373025 = 755379^2 + 732945^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124210 + ... + 1493666.

Almost surely, 2^{1107805806666} is an apocalyptic number.

1107805806666 is an abundant number, since it is smaller than the sum of its proper divisors (1477824020478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1107805806666 is a wasteful number, since it uses less digits than its factorization.

1107805806666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372935 (or 1372932 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 1107805806666 in words is "one trillion, one hundred seven billion, eight hundred five million, eight hundred six thousand, six hundred sixty-six".