13603245594721 has 12 divisors (see below), whose sum is σ = 14357037072000. Its totient is φ = 12887151497208.

The previous prime is 13603245594623. The next prime is 13603245594733. The reversal of 13603245594721 is 12749554230631.

It is not a de Polignac number, because 13603245594721 - 2¹⁹ = 13603245070433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13603245591721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61779580 + ... + 61999378.

It is an arithmetic number, because the mean of its divisors is an integer number (1196419756000).

Almost surely, 2^{13603245594721} is an apocalyptic number.

It is an amenable number.

13603245594721 is a deficient number, since it is larger than the sum of its proper divisors (753791477279).

13603245594721 is a wasteful number, since it uses less digits than its factorization.

13603245594721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391276 (or 391257 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 13603245594721 in words is "thirteen trillion, six hundred three billion, two hundred forty-five million, five hundred ninety-four thousand, seven hundred twenty-one".