13256430346415 has 16 divisors (see below), whose sum is σ = 15911468042400. Its totient is φ = 10602643556352.

The previous prime is 13256430346387. The next prime is 13256430346417. The reversal of 13256430346415 is 51464303465231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13256430346415 - 2¹² = 13256430342319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13256430346415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13256430346417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551351384 + ... + 551375426.

It is an arithmetic number, because the mean of its divisors is an integer number (994466752650).

Almost surely, 2^{13256430346415} is an apocalyptic number.

13256430346415 is a deficient number, since it is larger than the sum of its proper divisors (2655037695985).

13256430346415 is a wasteful number, since it uses less digits than its factorization.

13256430346415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45466.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 13256430346415 in words is "thirteen trillion, two hundred fifty-six billion, four hundred thirty million, three hundred forty-six thousand, four hundred fifteen".