1604134625656 has 32 divisors (see below), whose sum is σ = 3019303013760. Its totient is φ = 798988889952.

The previous prime is 1604134625617. The next prime is 1604134625663. The reversal of 1604134625656 is 6565264314061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7416661 + ... + 7629883.

It is an arithmetic number, because the mean of its divisors is an integer number (94353219180).

Almost surely, 2^{1604134625656} is an apocalyptic number.

It is an amenable number.

1604134625656 is a deficient number, since it is larger than the sum of its proper divisors (1415168388104).

1604134625656 is a wasteful number, since it uses less digits than its factorization.

1604134625656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216835 (or 216831 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 1604134625656 in words is "one trillion, six hundred four billion, one hundred thirty-four million, six hundred twenty-five thousand, six hundred fifty-six".