5551161169 has 4 divisors (see below), whose sum is σ = 5551387444. Its totient is φ = 5550934896.

The previous prime is 5551161139. The next prime is 5551161233. The reversal of 5551161169 is 9611611555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2757510144 + 2793651025 = 52512^2 + 52855^2 .

It is a cyclic number.

It is not a de Polignac number, because 5551161169 - 2⁵ = 5551161137 is a prime.

It is a super-2 number, since 2×5551161169² = 61630780648426893122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5551161139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71142 + ... + 127135.

It is an arithmetic number, because the mean of its divisors is an integer number (1387846861).

Almost surely, 2^5551161169 is an apocalyptic number.

It is an amenable number.

5551161169 is a deficient number, since it is larger than the sum of its proper divisors (226275).

5551161169 is a wasteful number, since it uses less digits than its factorization.

5551161169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226274.

The product of its digits is 40500, while the sum is 40.

The square root of 5551161169 is about 74506.1149772285. The cubic root of 5551161169 is about 1770.6305188736.

The spelling of 5551161169 in words is "five billion, five hundred fifty-one million, one hundred sixty-one thousand, one hundred sixty-nine".