18750030606 has 64 divisors (see below), whose sum is σ = 43570483200. Its totient is φ = 5965600608.

The previous prime is 18750030599. The next prime is 18750030631. The reversal of 18750030606 is 60603005781.

18750030606 is a `hidden beast` number, since 18 + 7 + 5 + 0 + 0 + 30 + 606 = 666.

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 31 ways as a sum of consecutive naturals, for example, 579160 + ... + 610676.

It is an arithmetic number, because the mean of its divisors is an integer number (680788800).

Almost surely, 2^18750030606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18750030606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21785241600).

18750030606 is an abundant number, since it is smaller than the sum of its proper divisors (24820452594).

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

18750030606 is a wasteful number, since it uses less digits than its factorization.

18750030606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32030 (or 32024 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 18750030606 in words is "eighteen billion, seven hundred fifty million, thirty thousand, six hundred six".