606660646 has 8 divisors (see below), whose sum is σ = 918339840. Its totient is φ = 300547368.

The previous prime is 606660569. The next prime is 606660647. The reversal of 606660646 is 646066606.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 606660599 and 606660608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606660647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391206 + ... + 1391641.

It is an arithmetic number, because the mean of its divisors is an integer number (114792480).

Almost surely, 2^606660646 is an apocalyptic number.

606660646 is a deficient number, since it is larger than the sum of its proper divisors (311679194).

606660646 is a wasteful number, since it uses less digits than its factorization.

606660646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782958.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 606660646 is about 24630.4820496879. The cubic root of 606660646 is about 846.5421907306.

The spelling of 606660646 in words is "six hundred six million, six hundred sixty thousand, six hundred forty-six".