2666343426 has 32 divisors (see below), whose sum is σ = 5358763008. Its totient is φ = 884446080.

The previous prime is 2666343413. The next prime is 2666343439. The reversal of 2666343426 is 6243436662.

It is an interprime number because it is at equal distance from previous prime (2666343413) and next prime (2666343439).

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, 1811871 + ... + 1813341.

It is an arithmetic number, because the mean of its divisors is an integer number (167461344).

Almost surely, 2^2666343426 is an apocalyptic number.

2666343426 is an abundant number, since it is smaller than the sum of its proper divisors (2692419582).

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

2666343426 is a wasteful number, since it uses less digits than its factorization.

2666343426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746.

The product of its digits is 746496, while the sum is 42.

The square root of 2666343426 is about 51636.6480902856. The cubic root of 2666343426 is about 1386.6665157971. Note that the first 3 decimals are identical.

The spelling of 2666343426 in words is "two billion, six hundred sixty-six million, three hundred forty-three thousand, four hundred twenty-six".