6660707660 has 12 divisors (see below), whose sum is σ = 13987486128. Its totient is φ = 2664283056.

The previous prime is 6660707657. The next prime is 6660707671. The reversal of 6660707660 is 667070666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166517672 + ... + 166517711.

It is an arithmetic number, because the mean of its divisors is an integer number (1165623844).

Almost surely, 2^6660707660 is an apocalyptic number.

It is an amenable number.

6660707660 is an abundant number, since it is smaller than the sum of its proper divisors (7326778468).

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

6660707660 is a wasteful number, since it uses less digits than its factorization.

6660707660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333035392 (or 333035390 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 6660707660 is about 81613.1586204088. The cubic root of 6660707660 is about 1881.5111266023.

The spelling of 6660707660 in words is "six billion, six hundred sixty million, seven hundred seven thousand, six hundred sixty".