2066569616 has 40 divisors (see below), whose sum is σ = 4138020864. Its totient is φ = 998772480.

The previous prime is 2066569613. The next prime is 2066569633. The reversal of 2066569616 is 6169656602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2066569613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537236 + ... + 541068.

Almost surely, 2^2066569616 is an apocalyptic number.

It is an amenable number.

2066569616 is an abundant number, since it is smaller than the sum of its proper divisors (2071451248).

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

2066569616 is a wasteful number, since it uses less digits than its factorization.

2066569616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959 (or 4953 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 2066569616 is about 45459.5382290670. The cubic root of 2066569616 is about 1273.7475058369.

The spelling of 2066569616 in words is "two billion, sixty-six million, five hundred sixty-nine thousand, six hundred sixteen".