5515161611 has 2 divisors, whose sum is σ = 5515161612. Its totient is φ = 5515161610.

The previous prime is 5515161593. The next prime is 5515161629. The reversal of 5515161611 is 1161615155.

It is a balanced prime because it is at equal distance from previous prime (5515161593) and next prime (5515161629).

It is a cyclic number.

It is not a de Polignac number, because 5515161611 - 2¹⁴ = 5515145227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5515161011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757580805 + 2757580806.

It is an arithmetic number, because the mean of its divisors is an integer number (2757580806).

Almost surely, 2^5515161611 is an apocalyptic number.

5515161611 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515161611 is an equidigital number, since it uses as much as digits as its factorization.

5515161611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4500, while the sum is 32.

The square root of 5515161611 is about 74264.1340823415. The cubic root of 5515161611 is about 1766.7946724899.

Adding to 5515161611 its reverse (1161615155), we get a palindrome (6676776766).

The spelling of 5515161611 in words is "five billion, five hundred fifteen million, one hundred sixty-one thousand, six hundred eleven".