13256660603040 has 96 divisors (see below), whose sum is σ = 42776980497216. Its totient is φ = 3448887306240.

The previous prime is 13256660603009. The next prime is 13256660603051. The reversal of 13256660603040 is 4030606665231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 13256660602983 and 13256660603001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336785722 + ... + 336825081.

It is an arithmetic number, because the mean of its divisors is an integer number (445593546846).

Almost surely, 2^{13256660603040} is an apocalyptic number.

13256660603040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13256660603040 is an abundant number, since it is smaller than the sum of its proper divisors (29520319894176).

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

13256660603040 is a wasteful number, since it uses less digits than its factorization.

13256660603040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673610862 (or 673610854 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 13256660603040 in words is "thirteen trillion, two hundred fifty-six billion, six hundred sixty million, six hundred three thousand, forty".