2666887344 has 120 divisors (see below), whose sum is σ = 8404890624. Its totient is φ = 782064000.

The previous prime is 2666887309. The next prime is 2666887361. The reversal of 2666887344 is 4437886662.

It is a super-2 number, since 2×2666887344² = 14224576211174748672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21949 + ... + 76259.

Almost surely, 2^2666887344 is an apocalyptic number.

2666887344 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 2666887344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4202445312).

2666887344 is an abundant number, since it is smaller than the sum of its proper divisors (5738003280).

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

2666887344 is a wasteful number, since it uses less digits than its factorization.

2666887344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54367 (or 54358 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The square root of 2666887344 is about 51641.9146043212. The cubic root of 2666887344 is about 1386.7607999254.

The spelling of 2666887344 in words is "two billion, six hundred sixty-six million, eight hundred eighty-seven thousand, three hundred forty-four".