2165296894 has 4 divisors (see below), whose sum is σ = 3247945344. Its totient is φ = 1082648446.

The previous prime is 2165296877. The next prime is 2165296901. The reversal of 2165296894 is 4986925612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541324222 + ... + 541324225.

It is an arithmetic number, because the mean of its divisors is an integer number (811986336).

Almost surely, 2^2165296894 is an apocalyptic number.

2165296894 is a deficient number, since it is larger than the sum of its proper divisors (1082648450).

2165296894 is a wasteful number, since it uses less digits than its factorization.

2165296894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082648449.

The product of its digits is 1866240, while the sum is 52.

The square root of 2165296894 is about 46532.7507676045. The cubic root of 2165296894 is about 1293.7166007419.

The spelling of 2165296894 in words is "two billion, one hundred sixty-five million, two hundred ninety-six thousand, eight hundred ninety-four".