2650641966 has 72 divisors (see below), whose sum is σ = 6755963760. Its totient is φ = 748794816.

The previous prime is 2650641953. The next prime is 2650641977. The reversal of 2650641966 is 6691460562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61615 + ... + 95381.

It is an arithmetic number, because the mean of its divisors is an integer number (93832830).

Almost surely, 2^2650641966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2650641966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3377981880).

2650641966 is an abundant number, since it is smaller than the sum of its proper divisors (4105321794).

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

2650641966 is a wasteful number, since it uses less digits than its factorization.

2650641966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33878 (or 33868 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 2650641966 is about 51484.3856523509. The cubic root of 2650641966 is about 1383.9392393024.

The spelling of 2650641966 in words is "two billion, six hundred fifty million, six hundred forty-one thousand, nine hundred sixty-six".