1666110818992 has 30 divisors (see below), whose sum is σ = 3244903388412. Its totient is φ = 828738763776.

The previous prime is 1666110818989. The next prime is 1666110819001. The reversal of 1666110818992 is 2998180116661.

It is a super-2 number, since 2×1666110818992² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 801798 + ... + 1993765.

Almost surely, 2^{1666110818992} is an apocalyptic number.

It is an amenable number.

1666110818992 is a deficient number, since it is larger than the sum of its proper divisors (1578792569420).

1666110818992 is an equidigital number, since it uses as much as digits as its factorization.

1666110818992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795957 (or 2795758 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 58.

The spelling of 1666110818992 in words is "one trillion, six hundred sixty-six billion, one hundred ten million, eight hundred eighteen thousand, nine hundred ninety-two".