6165660505 has 8 divisors (see below), whose sum is σ = 7399239624. Its totient is φ = 4932230400.

The previous prime is 6165660491. The next prime is 6165660509. The reversal of 6165660505 is 5050665616.

It can be written as a sum of positive squares in 4 ways, for example, as 399840016 + 5765820489 = 19996^2 + 75933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6165660505 - 2²⁵ = 6132106073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6165660509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99265 + ... + 148945.

It is an arithmetic number, because the mean of its divisors is an integer number (924904953).

Almost surely, 2^6165660505 is an apocalyptic number.

It is an amenable number.

6165660505 is a deficient number, since it is larger than the sum of its proper divisors (1233579119).

6165660505 is a wasteful number, since it uses less digits than its factorization.

6165660505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74507.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 6165660505 is about 78521.7199569648. The cubic root of 6165660505 is about 1833.6926151143.

The spelling of 6165660505 in words is "six billion, one hundred sixty-five million, six hundred sixty thousand, five hundred five".