13603456606644 has 72 divisors (see below), whose sum is σ = 35670810389760. Its totient is φ = 4533122340864.

The previous prime is 13603456606627. The next prime is 13603456606699. The reversal of 13603456606644 is 44660665430631.

13603456606644 is a `hidden beast` number, since 1 + 3 + 6 + 0 + 34 + 566 + 0 + 6 + 6 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1133757 + ... + 5337819.

It is an arithmetic number, because the mean of its divisors is an integer number (495427922080).

Almost surely, 2^{13603456606644} is an apocalyptic number.

It is an amenable number.

13603456606644 is an abundant number, since it is smaller than the sum of its proper divisors (22067353783116).

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

13603456606644 is a wasteful number, since it uses less digits than its factorization.

13603456606644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207411 (or 4207397 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 54.

The spelling of 13603456606644 in words is "thirteen trillion, six hundred three billion, four hundred fifty-six million, six hundred six thousand, six hundred forty-four".