5500556161551 has 36 divisors (see below), whose sum is σ = 8743616765520. Its totient is φ = 3329696462400.

The previous prime is 5500556161487. The next prime is 5500556161559. The reversal of 5500556161551 is 1551616550055.

It is not a de Polignac number, because 5500556161551 - 2⁶ = 5500556161487 is a prime.

It is a super-2 number, since 2×5500556161551² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5500556161497 and 5500556161506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500556161559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2096470 + ... + 3923811.

Almost surely, 2^{5500556161551} is an apocalyptic number.

5500556161551 is a deficient number, since it is larger than the sum of its proper divisors (3243060603969).

5500556161551 is a wasteful number, since it uses less digits than its factorization.

5500556161551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021148 (or 6021134 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 45.

The spelling of 5500556161551 in words is "five trillion, five hundred billion, five hundred fifty-six million, one hundred sixty-one thousand, five hundred fifty-one".