6606446660 has 24 divisors (see below), whose sum is σ = 15134769216. Its totient is φ = 2402344160.

The previous prime is 6606446659. The next prime is 6606446701. The reversal of 6606446660 is 666446066.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 15014432 + ... + 15014871.

It is an arithmetic number, because the mean of its divisors is an integer number (630615384).

Almost surely, 2^6606446660 is an apocalyptic number.

It is an amenable number.

6606446660 is an abundant number, since it is smaller than the sum of its proper divisors (8528322556).

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

6606446660 is a wasteful number, since it uses less digits than its factorization.

6606446660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30029323 (or 30029321 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 44.

The square root of 6606446660 is about 81280.0508119920. The cubic root of 6606446660 is about 1876.3879889246.

The spelling of 6606446660 in words is "six billion, six hundred six million, four hundred forty-six thousand, six hundred sixty".