5564136161 has 4 divisors (see below), whose sum is σ = 5564286000. Its totient is φ = 5563986324.

The previous prime is 5564136133. The next prime is 5564136169. The reversal of 5564136161 is 1616314655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1616314655 = 5 ⋅323262931.

It is a cyclic number.

It is not a de Polignac number, because 5564136161 - 2¹⁴ = 5564119777 is a prime.

It is a super-2 number, since 2×5564136161² = 61919222436295635842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5564136169) 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 in 3 ways as a sum of consecutive naturals, for example, 26990 + ... + 108888.

It is an arithmetic number, because the mean of its divisors is an integer number (1391071500).

Almost surely, 2^5564136161 is an apocalyptic number.

It is an amenable number.

5564136161 is a deficient number, since it is larger than the sum of its proper divisors (149839).

5564136161 is an equidigital number, since it uses as much as digits as its factorization.

5564136161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149838.

The product of its digits is 64800, while the sum is 38.

The square root of 5564136161 is about 74593.1374926675. The cubic root of 5564136161 is about 1772.0089716563.

The spelling of 5564136161 in words is "five billion, five hundred sixty-four million, one hundred thirty-six thousand, one hundred sixty-one".