2666601140 has 96 divisors (see below), whose sum is σ = 6833756160. Its totient is φ = 854130816.

The previous prime is 2666601107. The next prime is 2666601149. The reversal of 2666601140 is 411066662.

It is a super-2 number, since 2×2666601140² = 14221523279698599200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666601097 and 2666601106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666601149) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 128831 + ... + 148089.

It is an arithmetic number, because the mean of its divisors is an integer number (71184960).

Almost surely, 2^2666601140 is an apocalyptic number.

2666601140 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 2666601140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3416878080).

2666601140 is an abundant number, since it is smaller than the sum of its proper divisors (4167155020).

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

2666601140 is a wasteful number, since it uses less digits than its factorization.

2666601140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19341 (or 19339 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2666601140 is about 51639.1434863128. The cubic root of 2666601140 is about 1386.7111901950.

The spelling of 2666601140 in words is "two billion, six hundred sixty-six million, six hundred one thousand, one hundred forty".