2066690448 has 120 divisors (see below), whose sum is σ = 5894542368. Its totient is φ = 675849216.

The previous prime is 2066690447. The next prime is 2066690471. The reversal of 2066690448 is 8440966602.

It is not an unprimeable number, because it can be changed into a prime (2066690447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1740511 + ... + 1741697.

Almost surely, 2^2066690448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066690448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2947271184).

2066690448 is an abundant number, since it is smaller than the sum of its proper divisors (3827851920).

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

2066690448 is a wasteful number, since it uses less digits than its factorization.

2066690448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1412 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 2066690448 is about 45460.8672156614. The cubic root of 2066690448 is about 1273.7723306251.

The spelling of 2066690448 in words is "two billion, sixty-six million, six hundred ninety thousand, four hundred forty-eight".