2666816016 has 20 divisors (see below), whose sum is σ = 6889274832. Its totient is φ = 888938656.

The previous prime is 2666815997. The next prime is 2666816021. The reversal of 2666816016 is 6106186662.

It is a super-2 number, since 2×2666816016² = 14223815326388224512, which contains 22 as substring.

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, 27779286 + ... + 27779381.

Almost surely, 2^2666816016 is an apocalyptic number.

It is an amenable number.

2666816016 is an abundant number, since it is smaller than the sum of its proper divisors (4222458816).

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

2666816016 is a wasteful number, since it uses less digits than its factorization.

2666816016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55558678 (or 55558672 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2666816016 is about 51641.2239978876. The cubic root of 2666816016 is about 1386.7484364790.

The spelling of 2666816016 in words is "two billion, six hundred sixty-six million, eight hundred sixteen thousand, sixteen".