1161782651671 has 2 divisors, whose sum is σ = 1161782651672. Its totient is φ = 1161782651670.

The previous prime is 1161782651641. The next prime is 1161782651713. The reversal of 1161782651671 is 1761562871611.

It is a weak prime.

It is an emirp because it is prime and its reverse (1761562871611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161782651671 - 2¹³ = 1161782643479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161782651641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580891325835 + 580891325836.

It is an arithmetic number, because the mean of its divisors is an integer number (580891325836).

Almost surely, 2^{1161782651671} is an apocalyptic number.

1161782651671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161782651671 is an equidigital number, since it uses as much as digits as its factorization.

1161782651671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 52.

The spelling of 1161782651671 in words is "one trillion, one hundred sixty-one billion, seven hundred eighty-two million, six hundred fifty-one thousand, six hundred seventy-one".