2664555264 has 432 divisors, whose sum is σ = 9463883520. Its totient is φ = 731566080.

The previous prime is 2664555251. The next prime is 2664555287. The reversal of 2664555264 is 4625554662.

It is a tau number, because it is divible by the number of its divisors (432).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12628119 + ... + 12628329.

Almost surely, 2^2664555264 is an apocalyptic number.

2664555264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2664555264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4731941760).

2664555264 is an abundant number, since it is smaller than the sum of its proper divisors (6799328256).

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

2664555264 is an equidigital number, since it uses as much as digits as its factorization.

2664555264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 252 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The square root of 2664555264 is about 51619.3303327348. The cubic root of 2664555264 is about 1386.3564608535.

The spelling of 2664555264 in words is "two billion, six hundred sixty-four million, five hundred fifty-five thousand, two hundred sixty-four".