890606066 has 24 divisors (see below), whose sum is σ = 1607608620. Its totient is φ = 368525472.

The previous prime is 890606063. The next prime is 890606107. The reversal of 890606066 is 660606098.

890606066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 813675625 + 76930441 = 28525^2 + 8771^2 .

It is not an unprimeable number, because it can be changed into a prime (890606063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153845 + ... + 159528.

Almost surely, 2^890606066 is an apocalyptic number.

890606066 is a deficient number, since it is larger than the sum of its proper divisors (717002554).

890606066 is a wasteful number, since it uses less digits than its factorization.

890606066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313418 (or 313411 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 890606066 is about 29843.0237409013. The cubic root of 890606066 is about 962.1184647573.

The spelling of 890606066 in words is "eight hundred ninety million, six hundred six thousand, sixty-six".