2064260646 has 64 divisors (see below), whose sum is σ = 5263695360. Its totient is φ = 587412000.

The previous prime is 2064260591. The next prime is 2064260651. The reversal of 2064260646 is 6460624602.

2064260646 is a `hidden beast` number, since 2 + 0 + 6 + 4 + 2 + 6 + 0 + 646 = 666.

It is a super-2 number, since 2×2064260646² = 8522344029248674632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2064260646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84000 + ... + 105756.

It is an arithmetic number, because the mean of its divisors is an integer number (82245240).

Almost surely, 2^2064260646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2064260646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2631847680).

2064260646 is an abundant number, since it is smaller than the sum of its proper divisors (3199434714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2064260646 is a wasteful number, since it uses less digits than its factorization.

2064260646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22026 (or 22020 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2064260646 is about 45434.1352509322. The cubic root of 2064260646 is about 1273.2729447131.

The spelling of 2064260646 in words is "two billion, sixty-four million, two hundred sixty thousand, six hundred forty-six".