1604911133668 has 12 divisors (see below), whose sum is σ = 2830034137392. Its totient is φ = 796329951560.

The previous prime is 1604911133653. The next prime is 1604911133669. The reversal of 1604911133668 is 8663311194061.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1604911133669) 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, 1531403230 + ... + 1531404277.

It is an arithmetic number, because the mean of its divisors is an integer number (235836178116).

Almost surely, 2^{1604911133668} is an apocalyptic number.

It is an amenable number.

1604911133668 is a deficient number, since it is larger than the sum of its proper divisors (1225123003724).

1604911133668 is a wasteful number, since it uses less digits than its factorization.

1604911133668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062807642 (or 3062807640 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 1604911133668 in words is "one trillion, six hundred four billion, nine hundred eleven million, one hundred thirty-three thousand, six hundred sixty-eight".