6609329545 has 32 divisors (see below), whose sum is σ = 9852772608. Its totient is φ = 4144359168.

The previous prime is 6609329537. The next prime is 6609329557. The reversal of 6609329545 is 5459239066.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6609329545 - 2³ = 6609329537 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19194 + ... + 116563.

It is an arithmetic number, because the mean of its divisors is an integer number (307899144).

Almost surely, 2^6609329545 is an apocalyptic number.

6609329545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6609329545 is a deficient number, since it is larger than the sum of its proper divisors (3243443063).

6609329545 is a wasteful number, since it uses less digits than its factorization.

6609329545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135889.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The square root of 6609329545 is about 81297.7831493578. The cubic root of 6609329545 is about 1876.6608852037.

The spelling of 6609329545 in words is "six billion, six hundred nine million, three hundred twenty-nine thousand, five hundred forty-five".