2666324456 has 16 divisors (see below), whose sum is σ = 5010304740. Its totient is φ = 1330243200.

The previous prime is 2666324449. The next prime is 2666324471. The reversal of 2666324456 is 6544236662.

It can be written as a sum of positive squares in 2 ways, for example, as 2336175556 + 330148900 = 48334^2 + 18170^2 .

It is a super-2 number, since 2×2666324456² = 14218572209327391872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360995 + ... + 368306.

Almost surely, 2^2666324456 is an apocalyptic number.

It is an amenable number.

2666324456 is a deficient number, since it is larger than the sum of its proper divisors (2343980284).

2666324456 is a wasteful number, since it uses less digits than its factorization.

2666324456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729764 (or 729760 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 44.

The square root of 2666324456 is about 51636.4644025905. The cubic root of 2666324456 is about 1386.6632272577.

The spelling of 2666324456 in words is "two billion, six hundred sixty-six million, three hundred twenty-four thousand, four hundred fifty-six".