27660164141 has 4 divisors (see below), whose sum is σ = 27762990300. Its totient is φ = 27557337984.

The previous prime is 27660164131. The next prime is 27660164153. The reversal of 27660164141 is 14146106672.

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 5510092900 + 22150071241 = 74230^2 + 148829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27660164141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27660164095 and 27660164104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27660164131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51412676 + ... + 51413213.

It is an arithmetic number, because the mean of its divisors is an integer number (6940747575).

Almost surely, 2^27660164141 is an apocalyptic number.

It is an amenable number.

27660164141 is a deficient number, since it is larger than the sum of its proper divisors (102826159).

27660164141 is a wasteful number, since it uses less digits than its factorization.

27660164141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102826158.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 27660164141 in words is "twenty-seven billion, six hundred sixty million, one hundred sixty-four thousand, one hundred forty-one".