606690672066 has 24 divisors (see below), whose sum is σ = 1323953270640. Its totient is φ = 200775329496.

The previous prime is 606690672041. The next prime is 606690672097. The reversal of 606690672066 is 660276096606.

606690672066 is a `hidden beast` number, since 606 + 6 + 9 + 0 + 6 + 7 + 20 + 6 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121238640 + ... + 121243643.

It is an arithmetic number, because the mean of its divisors is an integer number (55164719610).

Almost surely, 2^606690672066 is an apocalyptic number.

606690672066 is an abundant number, since it is smaller than the sum of its proper divisors (717262598574).

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

606690672066 is a wasteful number, since it uses less digits than its factorization.

606690672066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242482430 (or 242482427 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 606690672066 in words is "six hundred six billion, six hundred ninety million, six hundred seventy-two thousand, sixty-six".