2168895081 has 8 divisors (see below), whose sum is σ = 2913935904. Its totient is φ = 1434892160.

The previous prime is 2168895073. The next prime is 2168895133. The reversal of 2168895081 is 1805988612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2168895081 - 2³ = 2168895073 is a prime.

It is a super-2 number, since 2×2168895081² = 9408211744771993122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2168895081.

It is not an unprimeable number, because it can be changed into a prime (2168895881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2759016 + ... + 2759801.

It is an arithmetic number, because the mean of its divisors is an integer number (364241988).

Almost surely, 2^2168895081 is an apocalyptic number.

It is an amenable number.

2168895081 is a deficient number, since it is larger than the sum of its proper divisors (745040823).

2168895081 is a wasteful number, since it uses less digits than its factorization.

2168895081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518951.

The product of its (nonzero) digits is 276480, while the sum is 48.

The square root of 2168895081 is about 46571.3976706734. The cubic root of 2168895081 is about 1294.4328163242.

The spelling of 2168895081 in words is "two billion, one hundred sixty-eight million, eight hundred ninety-five thousand, eighty-one".