2165350641 has 8 divisors (see below), whose sum is σ = 2901643200. Its totient is φ = 1436312592.

The previous prime is 2165350619. The next prime is 2165350661. The reversal of 2165350641 is 1460535612.

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

It is not a de Polignac number, because 2165350641 - 2²³ = 2156962033 is a prime.

It is a super-2 number, since 2×2165350641² = 9377486796958221762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2165350661) 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, 1812930 + ... + 1814123.

It is an arithmetic number, because the mean of its divisors is an integer number (362705400).

Almost surely, 2^2165350641 is an apocalyptic number.

It is an amenable number.

2165350641 is a deficient number, since it is larger than the sum of its proper divisors (736292559).

2165350641 is a wasteful number, since it uses less digits than its factorization.

2165350641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627255.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2165350641 is about 46533.3282819959. The cubic root of 2165350641 is about 1293.7273048645.

The spelling of 2165350641 in words is "two billion, one hundred sixty-five million, three hundred fifty thousand, six hundred forty-one".