1162791456641 has 2 divisors, whose sum is σ = 1162791456642. Its totient is φ = 1162791456640.

The previous prime is 1162791456611. The next prime is 1162791456649. The reversal of 1162791456641 is 1466541972611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1058694887041 + 104096569600 = 1028929^2 + 322640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1162791456641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1162791456649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581395728320 + 581395728321.

It is an arithmetic number, because the mean of its divisors is an integer number (581395728321).

Almost surely, 2^{1162791456641} is an apocalyptic number.

It is an amenable number.

1162791456641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162791456641 is an equidigital number, since it uses as much as digits as its factorization.

1162791456641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The spelling of 1162791456641 in words is "one trillion, one hundred sixty-two billion, seven hundred ninety-one million, four hundred fifty-six thousand, six hundred forty-one".