6666666760 has 64 divisors (see below), whose sum is σ = 16310810880. Its totient is φ = 2437620480.

The previous prime is 6666666757. The next prime is 6666666767. The reversal of 6666666760 is 676666666.

It is not an unprimeable number, because it can be changed into a prime (6666666767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8676 + ... + 115795.

It is an arithmetic number, because the mean of its divisors is an integer number (254856420).

Almost surely, 2^6666666760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6666666760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8155405440).

6666666760 is an abundant number, since it is smaller than the sum of its proper divisors (9644144120).

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

6666666760 is a wasteful number, since it uses less digits than its factorization.

6666666760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124598 (or 124594 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 55.

The square root of 6666666760 is about 81649.6586643202. The cubic root of 6666666760 is about 1882.0720665451.

The spelling of 6666666760 in words is "six billion, six hundred sixty-six million, six hundred sixty-six thousand, seven hundred sixty".