2866665120 has 384 divisors, whose sum is σ = 10561985280. Its totient is φ = 645857280.

The previous prime is 2866665119. The next prime is 2866665161. The reversal of 2866665120 is 215666682.

It is a super-2 number, since 2×2866665120² = 16435537820449228800, which contains 22 as substring.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 9783694 + ... + 9783986.

It is an arithmetic number, because the mean of its divisors is an integer number (27505170).

Almost surely, 2^2866665120 is an apocalyptic number.

2866665120 is a gapful number since it is divisible by the number (20) 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 2866665120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5280992640).

2866665120 is an abundant number, since it is smaller than the sum of its proper divisors (7695320160).

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

2866665120 is a wasteful number, since it uses less digits than its factorization.

2866665120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2866665120 is about 53541.2469036723. The cubic root of 2866665120 is about 1420.5580561312.

The spelling of 2866665120 in words is "two billion, eight hundred sixty-six million, six hundred sixty-five thousand, one hundred twenty".