11161294315777 has 2 divisors, whose sum is σ = 11161294315778. Its totient is φ = 11161294315776.

The previous prime is 11161294315763. The next prime is 11161294315783. The reversal of 11161294315777 is 77751349216111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9252279563536 + 1909014752241 = 3041756^2 + 1381671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11161294315777 is a prime.

It is a super-2 number, since 2×11161294315777² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11161294315747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580647157888 + 5580647157889.

It is an arithmetic number, because the mean of its divisors is an integer number (5580647157889).

Almost surely, 2^{11161294315777} is an apocalyptic number.

It is an amenable number.

11161294315777 is a deficient number, since it is larger than the sum of its proper divisors (1).

11161294315777 is an equidigital number, since it uses as much as digits as its factorization.

11161294315777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 55.

The spelling of 11161294315777 in words is "eleven trillion, one hundred sixty-one billion, two hundred ninety-four million, three hundred fifteen thousand, seven hundred seventy-seven".