2064650566 has 16 divisors (see below), whose sum is σ = 3379230720. Its totient is φ = 938279880.

The previous prime is 2064650531. The next prime is 2064650593. The reversal of 2064650566 is 6650564602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168475 + ... + 180313.

It is an arithmetic number, because the mean of its divisors is an integer number (211201920).

Almost surely, 2^2064650566 is an apocalyptic number.

2064650566 is a deficient number, since it is larger than the sum of its proper divisors (1314580154).

2064650566 is a wasteful number, since it uses less digits than its factorization.

2064650566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19779.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 2064650566 is about 45438.4260951015. The cubic root of 2064650566 is about 1273.3531095461.

The spelling of 2064650566 in words is "two billion, sixty-four million, six hundred fifty thousand, five hundred sixty-six".