2666343140 has 48 divisors (see below), whose sum is σ = 5746422528. Its totient is φ = 1038664704.

The previous prime is 2666343073. The next prime is 2666343151. The reversal of 2666343140 is 413436662.

It is a self number, because there is not a number n which added to its sum of digits gives 2666343140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299189 + ... + 307971.

It is an arithmetic number, because the mean of its divisors is an integer number (119717136).

Almost surely, 2^2666343140 is an apocalyptic number.

2666343140 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 2666343140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2873211264).

2666343140 is an abundant number, since it is smaller than the sum of its proper divisors (3080079388).

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

2666343140 is a wasteful number, since it uses less digits than its factorization.

2666343140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9188 (or 9186 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 2666343140 is about 51636.6453209346. The cubic root of 2666343140 is about 1386.6664662177. Note that the first 3 decimals are identical.

The spelling of 2666343140 in words is "two billion, six hundred sixty-six million, three hundred forty-three thousand, one hundred forty".