6756378966 has 20 divisors (see below), whose sum is σ = 15139293972. Its totient is φ = 2252126268.

The previous prime is 6756378949. The next prime is 6756378973. The reversal of 6756378966 is 6698736576.

6756378966 is a `hidden beast` number, since 6 + 7 + 563 + 7 + 8 + 9 + 66 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20852860 + ... + 20853183.

Almost surely, 2^6756378966 is an apocalyptic number.

6756378966 is an abundant number, since it is smaller than the sum of its proper divisors (8382915006).

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

6756378966 is a wasteful number, since it uses less digits than its factorization.

6756378966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41706057 (or 41706048 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The square root of 6756378966 is about 82197.1956090961. The cubic root of 6756378966 is about 1890.4767202593.

The spelling of 6756378966 in words is "six billion, seven hundred fifty-six million, three hundred seventy-eight thousand, nine hundred sixty-six".