163795865 has 16 divisors (see below), whose sum is σ = 207347520. Its totient is φ = 123871680.

The previous prime is 163795829. The next prime is 163795871. The reversal of 163795865 is 568597361.

It is a happy number.

163795865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163795865 - 2¹² = 163791769 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49802 + ... + 52988.

It is an arithmetic number, because the mean of its divisors is an integer number (12959220).

Almost surely, 2^163795865 is an apocalyptic number.

It is an amenable number.

163795865 is a deficient number, since it is larger than the sum of its proper divisors (43551655).

163795865 is a wasteful number, since it uses less digits than its factorization.

163795865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752.

The product of its digits is 1360800, while the sum is 50.

The square root of 163795865 is about 12798.2758604431. The cubic root of 163795865 is about 547.1431645472.

The spelling of 163795865 in words is "one hundred sixty-three million, seven hundred ninety-five thousand, eight hundred sixty-five".