2664402216 has 64 divisors (see below), whose sum is σ = 7646822400. Its totient is φ = 757833408.

The previous prime is 2664402211. The next prime is 2664402233. The reversal of 2664402216 is 6122044662.

It is not an unprimeable number, because it can be changed into a prime (2664402211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1905 + ... + 73023.

It is an arithmetic number, because the mean of its divisors is an integer number (119481600).

Almost surely, 2^2664402216 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 2664402216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3823411200).

2664402216 is an abundant number, since it is smaller than the sum of its proper divisors (4982420184).

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

2664402216 is a wasteful number, since it uses less digits than its factorization.

2664402216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71358 (or 71354 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 2664402216 is about 51617.8478435512. The cubic root of 2664402216 is about 1386.3299169434.

Adding to 2664402216 its reverse (6122044662), we get a palindrome (8786446878).

The spelling of 2664402216 in words is "two billion, six hundred sixty-four million, four hundred two thousand, two hundred sixteen".