2665955968 has 256 divisors, whose sum is σ = 6446563200. Its totient is φ = 1086898176.

The previous prime is 2665955947. The next prime is 2665956001. The reversal of 2665955968 is 8695595662.

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, 50301030 + ... + 50301082.

Almost surely, 2^2665955968 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 2665955968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3223281600).

2665955968 is an abundant number, since it is smaller than the sum of its proper divisors (3780607232).

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

2665955968 is a wasteful number, since it uses less digits than its factorization.

2665955968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 167 counting only the distinct ones).

The product of its digits is 34992000, while the sum is 61.

The square root of 2665955968 is about 51632.8961806327. The cubic root of 2665955968 is about 1386.5993450222.

The spelling of 2665955968 in words is "two billion, six hundred sixty-five million, nine hundred fifty-five thousand, nine hundred sixty-eight".