5511123185238 has 48 divisors (see below), whose sum is σ = 13112558065152. Its totient is φ = 1658977470000.

The previous prime is 5511123185201. The next prime is 5511123185261. The reversal of 5511123185238 is 8325813211155.

5511123185238 is a `hidden beast` number, since 5 + 5 + 1 + 112 + 3 + 1 + 8 + 523 + 8 = 666.

It is a super-2 number, since 2×5511123185238² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5511123185193 and 5511123185202.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 92135518 + ... + 92195313.

It is an arithmetic number, because the mean of its divisors is an integer number (273178293024).

Almost surely, 2^{5511123185238} is an apocalyptic number.

5511123185238 is an abundant number, since it is smaller than the sum of its proper divisors (7601434879914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5511123185238 is a wasteful number, since it uses less digits than its factorization.

5511123185238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184331001 (or 184330998 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The spelling of 5511123185238 in words is "five trillion, five hundred eleven billion, one hundred twenty-three million, one hundred eighty-five thousand, two hundred thirty-eight".