11166777749 has 2 divisors, whose sum is σ = 11166777750. Its totient is φ = 11166777748.

The previous prime is 11166777731. The next prime is 11166777767. The reversal of 11166777749 is 94777766111.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (11166777731) and next prime (11166777767).

It can be written as a sum of positive squares in only one way, i.e., 11166148900 + 628849 = 105670^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 11166777749 - 2²⁸ = 10898342293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11166777694 and 11166777703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11166777779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5583388874 + 5583388875.

It is an arithmetic number, because the mean of its divisors is an integer number (5583388875).

Almost surely, 2^11166777749 is an apocalyptic number.

It is an amenable number.

11166777749 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166777749 is an equidigital number, since it uses as much as digits as its factorization.

11166777749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3111696, while the sum is 56.

The spelling of 11166777749 in words is "eleven billion, one hundred sixty-six million, seven hundred seventy-seven thousand, seven hundred forty-nine".