2164360641 has 8 divisors (see below), whose sum is σ = 2888595840. Its totient is φ = 1441516272.

The previous prime is 2164360637. The next prime is 2164360643. The reversal of 2164360641 is 1460634612.

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

It is not a de Polignac number, because 2164360641 - 2² = 2164360637 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2164360643) 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, 344070 + ... + 350303.

It is an arithmetic number, because the mean of its divisors is an integer number (361074480).

Almost surely, 2^2164360641 is an apocalyptic number.

It is an amenable number.

2164360641 is a deficient number, since it is larger than the sum of its proper divisors (724235199).

2164360641 is a wasteful number, since it uses less digits than its factorization.

2164360641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695415.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 2164360641 is about 46522.6895288740. The cubic root of 2164360641 is about 1293.5301104318.

The spelling of 2164360641 in words is "two billion, one hundred sixty-four million, three hundred sixty thousand, six hundred forty-one".