18030055678 has 8 divisors (see below), whose sum is σ = 27045699120. Its totient is φ = 9014822640.

The previous prime is 18030055613. The next prime is 18030055679. The reversal of 18030055678 is 87655003081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18030055679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56698 + ... + 198178.

It is an arithmetic number, because the mean of its divisors is an integer number (3380712390).

Almost surely, 2^18030055678 is an apocalyptic number.

18030055678 is a deficient number, since it is larger than the sum of its proper divisors (9015643442).

18030055678 is a wasteful number, since it uses less digits than its factorization.

18030055678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205202.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 18030055678 in words is "eighteen billion, thirty million, fifty-five thousand, six hundred seventy-eight".