13042521660064 has 48 divisors (see below), whose sum is σ = 27655293699432. Its totient is φ = 6019050774528.

The previous prime is 13042521660043. The next prime is 13042521660083. The reversal of 13042521660064 is 46006612524031.

It can be written as a sum of positive squares in 4 ways, for example, as 3108098480400 + 9934423179664 = 1762980^2 + 3151892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13042521659999 and 13042521660026.

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, 2882292 + ... + 5864524.

Almost surely, 2^{13042521660064} is an apocalyptic number.

It is an amenable number.

13042521660064 is an abundant number, since it is smaller than the sum of its proper divisors (14612772039368).

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

13042521660064 is a wasteful number, since it uses less digits than its factorization.

13042521660064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992769 (or 2992761 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 13042521660064 in words is "thirteen trillion, forty-two billion, five hundred twenty-one million, six hundred sixty thousand, sixty-four".