6546580564 has 12 divisors (see below), whose sum is σ = 11672677044. Its totient is φ = 3211529984.

The previous prime is 6546580517. The next prime is 6546580567. The reversal of 6546580564 is 4650856456.

It can be written as a sum of positive squares in 2 ways, for example, as 4769283600 + 1777296964 = 69060^2 + 42158^2 .

It is a super-3 number, since 3×6546580564³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6546580567) 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, 15439837 + ... + 15440260.

It is an arithmetic number, because the mean of its divisors is an integer number (972723087).

Almost surely, 2^6546580564 is an apocalyptic number.

It is an amenable number.

6546580564 is a deficient number, since it is larger than the sum of its proper divisors (5126096480).

6546580564 is a wasteful number, since it uses less digits than its factorization.

6546580564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30880154 (or 30880152 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 49.

The square root of 6546580564 is about 80910.9421771864. The cubic root of 6546580564 is about 1870.7029837159.

The spelling of 6546580564 in words is "six billion, five hundred forty-six million, five hundred eighty thousand, five hundred sixty-four".