6756545565 has 72 divisors (see below), whose sum is σ = 14861946528. Its totient is φ = 2807904960.

The previous prime is 6756545557. The next prime is 6756545633. The reversal of 6756545565 is 5655456576.

6756545565 is a `hidden beast` number, since 6 + 75 + 6 + 5 + 4 + 5 + 565 = 666.

It is not a de Polignac number, because 6756545565 - 2³ = 6756545557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 115027 + ... + 163536.

It is an arithmetic number, because the mean of its divisors is an integer number (206415924).

Almost surely, 2^6756545565 is an apocalyptic number.

It is an amenable number.

6756545565 is an abundant number, since it is smaller than the sum of its proper divisors (8105400963).

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

6756545565 is a wasteful number, since it uses less digits than its factorization.

6756545565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278599 (or 278589 counting only the distinct ones).

The product of its digits is 18900000, while the sum is 54.

The square root of 6756545565 is about 82198.2090133356. The cubic root of 6756545565 is about 1890.4922586093.

The spelling of 6756545565 in words is "six billion, seven hundred fifty-six million, five hundred forty-five thousand, five hundred sixty-five".