5611005018 has 12 divisors (see below), whose sum is σ = 12157177578. Its totient is φ = 1870335000.

The previous prime is 5611005011. The next prime is 5611005041. The reversal of 5611005018 is 8105001165.

5611005018 is a `hidden beast` number, since 56 + 1 + 100 + 501 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5424764409 + 186240609 = 73653^2 + 13647^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5611004982 and 5611005000.

It is not an unprimeable number, because it can be changed into a prime (5611005011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155861233 + ... + 155861268.

Almost surely, 2^5611005018 is an apocalyptic number.

5611005018 is an abundant number, since it is smaller than the sum of its proper divisors (6546172560).

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

5611005018 is a wasteful number, since it uses less digits than its factorization.

5611005018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311722509 (or 311722506 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 5611005018 is about 74906.6420152445. The cubic root of 5611005018 is about 1776.9705041568.

The spelling of 5611005018 in words is "five billion, six hundred eleven million, five thousand, eighteen".