6615893660 has 24 divisors (see below), whose sum is σ = 14232241296. Its totient is φ = 2581811840.

The previous prime is 6615893657. The next prime is 6615893707. The reversal of 6615893660 is 663985166.

It is a junction number, because it is equal to n+sod(n) for n = 6615893599 and 6615893608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4033262 + ... + 4034901.

It is an arithmetic number, because the mean of its divisors is an integer number (593010054).

Almost surely, 2^6615893660 is an apocalyptic number.

It is an amenable number.

6615893660 is an abundant number, since it is smaller than the sum of its proper divisors (7616347636).

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

6615893660 is a wasteful number, since it uses less digits than its factorization.

6615893660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8068213 (or 8068211 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 6615893660 is about 81338.1439424333. The cubic root of 6615893660 is about 1877.2819538469.

The spelling of 6615893660 in words is "six billion, six hundred fifteen million, eight hundred ninety-three thousand, six hundred sixty".