606231635566 has 4 divisors (see below), whose sum is σ = 909347453352. Its totient is φ = 303115817782.

The previous prime is 606231635557. The next prime is 606231635609. The reversal of 606231635566 is 665536132606.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×606231635566² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 151557908890 + ... + 151557908893.

It is an arithmetic number, because the mean of its divisors is an integer number (227336863338).

Almost surely, 2^606231635566 is an apocalyptic number.

606231635566 is a deficient number, since it is larger than the sum of its proper divisors (303115817786).

606231635566 is a wasteful number, since it uses less digits than its factorization.

606231635566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303115817785.

The product of its (nonzero) digits is 3499200, while the sum is 49.

The spelling of 606231635566 in words is "six hundred six billion, two hundred thirty-one million, six hundred thirty-five thousand, five hundred sixty-six".