13054660465565 has 8 divisors (see below), whose sum is σ = 15666056830680. Its totient is φ = 10443418857792.

The previous prime is 13054660465549. The next prime is 13054660465573. The reversal of 13054660465565 is 56556406645031.

It can be written as a sum of positive squares in 4 ways, for example, as 2013055867684 + 11041604597881 = 1418822^2 + 3322891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13054660465565 - 2⁴ = 13054660465549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13054660465565.

It is a congruent number.

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, 38503670 + ... + 38841239.

It is an arithmetic number, because the mean of its divisors is an integer number (1958257103835).

Almost surely, 2^{13054660465565} is an apocalyptic number.

It is an amenable number.

13054660465565 is a deficient number, since it is larger than the sum of its proper divisors (2611396365115).

13054660465565 is an equidigital number, since it uses as much as digits as its factorization.

13054660465565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77378671.

The product of its (nonzero) digits is 38880000, while the sum is 56.

The spelling of 13054660465565 in words is "thirteen trillion, fifty-four billion, six hundred sixty million, four hundred sixty-five thousand, five hundred sixty-five".