1155444445511 has 2 divisors, whose sum is σ = 1155444445512. Its totient is φ = 1155444445510.

The previous prime is 1155444445501. The next prime is 1155444445541.

1155444445511 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1155444445511 - 2¹⁰ = 1155444444487 is a prime.

It is a super-2 number, since 2×1155444445511² (a number of 25 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155444445501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577722222755 + 577722222756.

It is an arithmetic number, because the mean of its divisors is an integer number (577722222756).

Almost surely, 2^{1155444445511} is an apocalyptic number.

1155444445511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155444445511 is an equidigital number, since it uses as much as digits as its factorization.

1155444445511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640000, while the sum is 44.

The spelling of 1155444445511 in words is "one trillion, one hundred fifty-five billion, four hundred forty-four million, four hundred forty-five thousand, five hundred eleven".