2168993112 has 64 divisors (see below), whose sum is σ = 6370479360. Its totient is φ = 606710400.

The previous prime is 2168993063. The next prime is 2168993117. The reversal of 2168993112 is 2113998612.

It is a super-2 number, since 2×2168993112² = 9409062239806889088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168993117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312564 + ... + 319427.

It is an arithmetic number, because the mean of its divisors is an integer number (99538740).

Almost surely, 2^2168993112 is an apocalyptic number.

2168993112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2168993112 is an abundant number, since it is smaller than the sum of its proper divisors (4201486248).

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

2168993112 is a wasteful number, since it uses less digits than its factorization.

2168993112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632024 (or 632020 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 2168993112 is about 46572.4501395407. The cubic root of 2168993112 is about 1294.4523182099.

The spelling of 2168993112 in words is "two billion, one hundred sixty-eight million, nine hundred ninety-three thousand, one hundred twelve".