606666606 has 64 divisors (see below), whose sum is σ = 1499904000. Its totient is φ = 159296256.

The previous prime is 606666589. The next prime is 606666611.

606666606 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128170 + ... + 132818.

It is an arithmetic number, because the mean of its divisors is an integer number (23436000).

Almost surely, 2^606666606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 606666606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749952000).

606666606 is an abundant number, since it is smaller than the sum of its proper divisors (893237394).

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

606666606 is a wasteful number, since it uses less digits than its factorization.

606666606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913.

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 606666606 is about 24630.6030376846. The cubic root of 606666606 is about 846.5449629421.

Multiplying 606666606 by its sum of digits (42), we get a palindrome (25479997452).

It can be divided in two parts, 60 and 6666606, that added together give a palindrome (6666666).

The spelling of 606666606 in words is "six hundred six million, six hundred sixty-six thousand, six hundred six".