6665110515 has 160 divisors (see below), whose sum is σ = 14206832640. Its totient is φ = 2925331200.

The previous prime is 6665110483. The next prime is 6665110519. The reversal of 6665110515 is 5150115666.

It is not a de Polignac number, because 6665110515 - 2⁵ = 6665110483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6665110515.

It is not an unprimeable number, because it can be changed into a prime (6665110519) by changing a digit.

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 159 ways as a sum of consecutive naturals, for example, 15906976 + ... + 15907394.

It is an arithmetic number, because the mean of its divisors is an integer number (88792704).

Almost surely, 2^6665110515 is an apocalyptic number.

6665110515 is an abundant number, since it is smaller than the sum of its proper divisors (7541722125).

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

6665110515 is a wasteful number, since it uses less digits than its factorization.

6665110515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 6665110515 is about 81640.1280927462. The cubic root of 6665110515 is about 1881.9256068880.

The spelling of 6665110515 in words is "six billion, six hundred sixty-five million, one hundred ten thousand, five hundred fifteen".