6615670660 has 24 divisors (see below), whose sum is σ = 14088586176. Its totient is φ = 2608996320.

The previous prime is 6615670639. The next prime is 6615670669. The reversal of 6615670660 is 660765166.

It is not an unprimeable number, because it can be changed into a prime (6615670669) 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, 2328042 + ... + 2330881.

It is an arithmetic number, because the mean of its divisors is an integer number (587024424).

Almost surely, 2^6615670660 is an apocalyptic number.

It is an amenable number.

6615670660 is an abundant number, since it is smaller than the sum of its proper divisors (7472915516).

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

6615670660 is a wasteful number, since it uses less digits than its factorization.

6615670660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659003 (or 4659001 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 6615670660 is about 81336.7731103220. The cubic root of 6615670660 is about 1877.2608612780.

The spelling of 6615670660 in words is "six billion, six hundred fifteen million, six hundred seventy thousand, six hundred sixty".