6604406246646 has 48 divisors (see below), whose sum is σ = 15411722888016. Its totient is φ = 2031934891968.

The previous prime is 6604406246593. The next prime is 6604406246653. The reversal of 6604406246646 is 6466426044066.

6604406246646 is a `hidden beast` number, since 6 + 6 + 0 + 4 + 4 + 0 + 624 + 6 + 6 + 4 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6604406246592 and 6604406246601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1196701 + ... + 3826343.

It is an arithmetic number, because the mean of its divisors is an integer number (321077560167).

Almost surely, 2^{6604406246646} is an apocalyptic number.

6604406246646 is an abundant number, since it is smaller than the sum of its proper divisors (8807316641370).

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

6604406246646 is a wasteful number, since it uses less digits than its factorization.

6604406246646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640397 (or 2640394 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 54.

The spelling of 6604406246646 in words is "six trillion, six hundred four billion, four hundred six million, two hundred forty-six thousand, six hundred forty-six".