2063440666 has 32 divisors (see below), whose sum is σ = 3623558400. Its totient is φ = 880892208.

The previous prime is 2063440663. The next prime is 2063440667. The reversal of 2063440666 is 6660443602.

It is not an unprimeable number, because it can be changed into a prime (2063440663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174700 + ... + 186136.

It is an arithmetic number, because the mean of its divisors is an integer number (113236200).

Almost surely, 2^2063440666 is an apocalyptic number.

2063440666 is a deficient number, since it is larger than the sum of its proper divisors (1560117734).

2063440666 is a wasteful number, since it uses less digits than its factorization.

2063440666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723 (or 11709 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The square root of 2063440666 is about 45425.1105227054. The cubic root of 2063440666 is about 1273.1043296007.

The spelling of 2063440666 in words is "two billion, sixty-three million, four hundred forty thousand, six hundred sixty-six".