2164365240617 has 4 divisors (see below), whose sum is σ = 2166594248016. Its totient is φ = 2162136233220.

The previous prime is 2164365240559. The next prime is 2164365240671. The reversal of 2164365240617 is 7160425634612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2164365240617 - 2²⁴ = 2164348463401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164365249617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114502243 + ... + 1114504184.

It is an arithmetic number, because the mean of its divisors is an integer number (541648562004).

Almost surely, 2^{2164365240617} is an apocalyptic number.

It is an amenable number.

2164365240617 is a deficient number, since it is larger than the sum of its proper divisors (2229007399).

2164365240617 is an equidigital number, since it uses as much as digits as its factorization.

2164365240617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229007398.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 2164365240617 in words is "two trillion, one hundred sixty-four billion, three hundred sixty-five million, two hundred forty thousand, six hundred seventeen".