13536275041661 has 4 divisors (see below), whose sum is σ = 13539059715324. Its totient is φ = 13533490368000.

The previous prime is 13536275041651. The next prime is 13536275041703. The reversal of 13536275041661 is 16614057263531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11029911119161 + 2506363922500 = 3321131^2 + 1583150^2 .

It is a cyclic number.

It is not a de Polignac number, because 13536275041661 - 2³⁸ = 13261397134717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13536275041651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392329540 + ... + 1392339261.

It is an arithmetic number, because the mean of its divisors is an integer number (3384764928831).

Almost surely, 2^{13536275041661} is an apocalyptic number.

It is an amenable number.

13536275041661 is a deficient number, since it is larger than the sum of its proper divisors (2784673663).

13536275041661 is an equidigital number, since it uses as much as digits as its factorization.

13536275041661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784673662.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 13536275041661 in words is "thirteen trillion, five hundred thirty-six billion, two hundred seventy-five million, forty-one thousand, six hundred sixty-one".