13711204501561 has 8 divisors (see below), whose sum is σ = 15670949465600. Its totient is φ = 11751709903488.

The previous prime is 13711204501543. The next prime is 13711204501613. The reversal of 13711204501561 is 16510540211731.

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 13711204501561 - 2¹¹ = 13711204499513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13711204501561.

It is not an unprimeable number, because it can be changed into a prime (13711204591561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62474121 + ... + 62693206.

It is an arithmetic number, because the mean of its divisors is an integer number (1958868683200).

Almost surely, 2^{13711204501561} is an apocalyptic number.

It is an amenable number.

13711204501561 is a deficient number, since it is larger than the sum of its proper divisors (1959744964039).

13711204501561 is a wasteful number, since it uses less digits than its factorization.

13711204501561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125182983.

The product of its (nonzero) digits is 25200, while the sum is 37.

The spelling of 13711204501561 in words is "thirteen trillion, seven hundred eleven billion, two hundred four million, five hundred one thousand, five hundred sixty-one".