2643364065 has 32 divisors (see below), whose sum is σ = 4440574080. Its totient is φ = 1340849664.

The previous prime is 2643364049. The next prime is 2643364067. The reversal of 2643364065 is 5604633462.

It is not a de Polignac number, because 2643364065 - 2⁴ = 2643364049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2643364067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16204 + ... + 74493.

It is an arithmetic number, because the mean of its divisors is an integer number (138767940).

Almost surely, 2^2643364065 is an apocalyptic number.

It is an amenable number.

2643364065 is a deficient number, since it is larger than the sum of its proper divisors (1797210015).

2643364065 is a wasteful number, since it uses less digits than its factorization.

2643364065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90801.

The product of its (nonzero) digits is 311040, while the sum is 39.

The square root of 2643364065 is about 51413.6564056672. The cubic root of 2643364065 is about 1382.6714451326.

The spelling of 2643364065 in words is "two billion, six hundred forty-three million, three hundred sixty-four thousand, sixty-five".