6564705245 has 16 divisors (see below), whose sum is σ = 9006590208. Its totient is φ = 4499729280.

The previous prime is 6564705221. The next prime is 6564705271. The reversal of 6564705245 is 5425074656.

It is a de Polignac number, because none of the positive numbers 2^k-6564705245 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6564705196 and 6564705205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55760 + ... + 127430.

It is an arithmetic number, because the mean of its divisors is an integer number (562911888).

Almost surely, 2^6564705245 is an apocalyptic number.

It is an amenable number.

6564705245 is a deficient number, since it is larger than the sum of its proper divisors (2441884963).

6564705245 is a wasteful number, since it uses less digits than its factorization.

6564705245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74300.

The product of its (nonzero) digits is 1008000, while the sum is 44.

The square root of 6564705245 is about 81022.8686544731. The cubic root of 6564705245 is about 1872.4277850442.

The spelling of 6564705245 in words is "six billion, five hundred sixty-four million, seven hundred five thousand, two hundred forty-five".