6663394170 has 192 divisors, whose sum is σ = 18576739584. Its totient is φ = 1653442560.

The previous prime is 6663394151. The next prime is 6663394181. The reversal of 6663394170 is 714933666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14268277 + ... + 14268743.

It is an arithmetic number, because the mean of its divisors is an integer number (96753852).

Almost surely, 2^6663394170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6663394170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9288369792).

6663394170 is an abundant number, since it is smaller than the sum of its proper divisors (11913345414).

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

6663394170 is a wasteful number, since it uses less digits than its factorization.

6663394170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 6663394170 is about 81629.6157653581. The cubic root of 6663394170 is about 1881.7640536327.

The spelling of 6663394170 in words is "six billion, six hundred sixty-three million, three hundred ninety-four thousand, one hundred seventy".