33018184138 has 16 divisors (see below), whose sum is σ = 49784587776. Its totient is φ = 16423426800.

The previous prime is 33018184049. The next prime is 33018184139. The reversal of 33018184138 is 83148181033.

It is a self number, because there is not a number n which added to its sum of digits gives 33018184138.

It is not an unprimeable number, because it can be changed into a prime (33018184139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622563 + ... + 673513.

It is an arithmetic number, because the mean of its divisors is an integer number (3111536736).

Almost surely, 2^33018184138 is an apocalyptic number.

33018184138 is a deficient number, since it is larger than the sum of its proper divisors (16766403638).

33018184138 is a wasteful number, since it uses less digits than its factorization.

33018184138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52629.

The product of its (nonzero) digits is 55296, while the sum is 40.

It can be divided in two parts, 33018 and 184138, that added together give a square (217156 = 466²).

The spelling of 33018184138 in words is "thirty-three billion, eighteen million, one hundred eighty-four thousand, one hundred thirty-eight".