7663065966 has 64 divisors (see below), whose sum is σ = 17915040000. Its totient is φ = 2424443616.

The previous prime is 7663065947. The next prime is 7663065983. The reversal of 7663065966 is 6695603667.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50925 + ... + 133863.

It is an arithmetic number, because the mean of its divisors is an integer number (279922500).

Almost surely, 2^7663065966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7663065966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8957520000).

7663065966 is an abundant number, since it is smaller than the sum of its proper divisors (10251974034).

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

7663065966 is a wasteful number, since it uses less digits than its factorization.

7663065966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83038 (or 83032 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 54.

The square root of 7663065966 is about 87538.9397125645. The cubic root of 7663065966 is about 1971.5184909972.

The spelling of 7663065966 in words is "seven billion, six hundred sixty-three million, sixty-five thousand, nine hundred sixty-six".