13256030340465 has 32 divisors (see below), whose sum is σ = 23153400861696. Its totient is φ = 6422832212160.

The previous prime is 13256030340457. The next prime is 13256030340517. The reversal of 13256030340465 is 56404303065231.

13256030340465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13256030340465 - 2³ = 13256030340457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26842149 + ... + 27331538.

It is an arithmetic number, because the mean of its divisors is an integer number (723543776928).

Almost surely, 2^{13256030340465} is an apocalyptic number.

13256030340465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13256030340465 is a deficient number, since it is larger than the sum of its proper divisors (9897370521231).

13256030340465 is a wasteful number, since it uses less digits than its factorization.

13256030340465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54175189.

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 13256030340465 in words is "thirteen trillion, two hundred fifty-six billion, thirty million, three hundred forty thousand, four hundred sixty-five".