2116663166 has 24 divisors (see below), whose sum is σ = 3376643880. Its totient is φ = 994925952.

The previous prime is 2116663127. The next prime is 2116663177. The reversal of 2116663166 is 6613666112.

It is a super-2 number, since 2×2116663166² = 8960525916602287112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 699605 + ... + 702623.

It is an arithmetic number, because the mean of its divisors is an integer number (140693495).

Almost surely, 2^2116663166 is an apocalyptic number.

2116663166 is a deficient number, since it is larger than the sum of its proper divisors (1259980714).

2116663166 is a wasteful number, since it uses less digits than its factorization.

2116663166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268 (or 4251 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 2116663166 is about 46007.2077613932. The cubic root of 2116663166 is about 1283.9573096672.

The spelling of 2116663166 in words is "two billion, one hundred sixteen million, six hundred sixty-three thousand, one hundred sixty-six".