2663465688 has 288 divisors, whose sum is σ = 8441072640. Its totient is φ = 756138240.

The previous prime is 2663465687. The next prime is 2663465699. The reversal of 2663465688 is 8865643662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663465687) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8675631 + ... + 8675937.

It is an arithmetic number, because the mean of its divisors is an integer number (29309280).

Almost surely, 2^2663465688 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 2663465688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4220536320).

2663465688 is an abundant number, since it is smaller than the sum of its proper divisors (5777606952).

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

2663465688 is a wasteful number, since it uses less digits than its factorization.

2663465688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 379 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The square root of 2663465688 is about 51608.7753003305. The cubic root of 2663465688 is about 1386.1674678799.

The spelling of 2663465688 in words is "two billion, six hundred sixty-three million, four hundred sixty-five thousand, six hundred eighty-eight".