6666746960 has 40 divisors (see below), whose sum is σ = 15829986816. Its totient is φ = 2609959040.

The previous prime is 6666746953. The next prime is 6666746969. The reversal of 6666746960 is 696476666.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 6666746896 and 6666746905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666746969) 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 7 ways as a sum of consecutive naturals, for example, 882776 + ... + 890295.

Almost surely, 2^6666746960 is an apocalyptic number.

It is an amenable number.

6666746960 is an abundant number, since it is smaller than the sum of its proper divisors (9163239856).

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

6666746960 is a wasteful number, since it uses less digits than its factorization.

6666746960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773131 (or 1773125 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 56.

The square root of 6666746960 is about 81650.1497855332. The cubic root of 6666746960 is about 1882.0796136237.

The spelling of 6666746960 in words is "six billion, six hundred sixty-six million, seven hundred forty-six thousand, nine hundred sixty".