2666252288 has 108 divisors (see below), whose sum is σ = 6239883195. Its totient is φ = 1135669248.

The previous prime is 2666252261. The next prime is 2666252317. The reversal of 2666252288 is 8822526662.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 1333126144 + 1333126144 = 36512^2 + 36512^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=36512.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16357295 + ... + 16357457.

Almost surely, 2^2666252288 is an apocalyptic number.

2666252288 is a gapful number since it is divisible by the number (28) 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 2666252288

2666252288 is an abundant number, since it is smaller than the sum of its proper divisors (3573630907).

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

2666252288 is an frugal number, since it uses more digits than its factorization.

2666252288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 172 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 47.

The square root of 2666252288 is about 51635.7655893664. The cubic root of 2666252288 is about 1386.6507164503.

The spelling of 2666252288 in words is "two billion, six hundred sixty-six million, two hundred fifty-two thousand, two hundred eighty-eight".