7551116181 has 48 divisors (see below), whose sum is σ = 12602169216. Its totient is φ = 4267726848.

The previous prime is 7551116161. The next prime is 7551116189. The reversal of 7551116181 is 1816111557.

7551116181 is a `hidden beast` number, since 7 + 5 + 511 + 1 + 61 + 81 = 666.

It is not a de Polignac number, because 7551116181 - 2¹¹ = 7551114133 is a prime.

It is a super-2 number, since 2×7551116181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7551116189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4861501 + ... + 4863053.

It is an arithmetic number, because the mean of its divisors is an integer number (262545192).

Almost surely, 2^7551116181 is an apocalyptic number.

It is an amenable number.

7551116181 is a deficient number, since it is larger than the sum of its proper divisors (5051053035).

7551116181 is a wasteful number, since it uses less digits than its factorization.

7551116181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362 (or 2359 counting only the distinct ones).

The product of its digits is 8400, while the sum is 36.

The square root of 7551116181 is about 86897.1586474495. The cubic root of 7551116181 is about 1961.8707133305.

The spelling of 7551116181 in words is "seven billion, five hundred fifty-one million, one hundred sixteen thousand, one hundred eighty-one".