1606217363668 has 12 divisors (see below), whose sum is σ = 2814789821760. Its totient is φ = 801991700312.

The previous prime is 1606217363609. The next prime is 1606217363669. The reversal of 1606217363668 is 8663637126061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606217363669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279242146 + ... + 279247897.

It is an arithmetic number, because the mean of its divisors is an integer number (234565818480).

Almost surely, 2^{1606217363668} is an apocalyptic number.

It is an amenable number.

1606217363668 is a deficient number, since it is larger than the sum of its proper divisors (1208572458092).

1606217363668 is a wasteful number, since it uses less digits than its factorization.

1606217363668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558490766 (or 558490764 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 1606217363668 in words is "one trillion, six hundred six billion, two hundred seventeen million, three hundred sixty-three thousand, six hundred sixty-eight".