2064543165 has 24 divisors (see below), whose sum is σ = 3581648928. Its totient is φ = 1100133600.

The previous prime is 2064543157. The next prime is 2064543179. The reversal of 2064543165 is 5613454602.

2064543165 is a `hidden beast` number, since 2 + 0 + 645 + 4 + 3 + 1 + 6 + 5 = 666.

It is not a de Polignac number, because 2064543165 - 2³ = 2064543157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34090 + ... + 72740.

It is an arithmetic number, because the mean of its divisors is an integer number (149235372).

Almost surely, 2^2064543165 is an apocalyptic number.

It is an amenable number.

2064543165 is a deficient number, since it is larger than the sum of its proper divisors (1517105763).

2064543165 is a wasteful number, since it uses less digits than its factorization.

2064543165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39849 (or 39846 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2064543165 is about 45437.2442496241. The cubic root of 2064543165 is about 1273.3310296566.

Adding to 2064543165 its reverse (5613454602), we get a palindrome (7677997767).

The spelling of 2064543165 in words is "two billion, sixty-four million, five hundred forty-three thousand, one hundred sixty-five".