2666971340 has 24 divisors (see below), whose sum is σ = 6109789392. Its totient is φ = 969807680.

The previous prime is 2666971331. The next prime is 2666971379. The reversal of 2666971340 is 431796662.

It is a super-2 number, since 2×2666971340² = 14225472256762791200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 2666971291 and 2666971300.

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 7 ways as a sum of consecutive naturals, for example, 6061079 + ... + 6061518.

It is an arithmetic number, because the mean of its divisors is an integer number (254574558).

Almost surely, 2^2666971340 is an apocalyptic number.

2666971340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666971340 is an abundant number, since it is smaller than the sum of its proper divisors (3442818052).

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

2666971340 is a wasteful number, since it uses less digits than its factorization.

2666971340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12122617 (or 12122615 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 2666971340 is about 51642.7278520413. The cubic root of 2666971340 is about 1386.7753588628.

The spelling of 2666971340 in words is "two billion, six hundred sixty-six million, nine hundred seventy-one thousand, three hundred forty".