18369466506 has 24 divisors (see below), whose sum is σ = 40194579204. Its totient is φ = 6062529600.

The previous prime is 18369466481. The next prime is 18369466517. The reversal of 18369466506 is 60566496381.

18369466506 is a `hidden beast` number, since 18 + 3 + 69 + 4 + 66 + 506 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17904848481 + 464618025 = 133809^2 + 21555^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5050291 + ... + 5053926.

Almost surely, 2^18369466506 is an apocalyptic number.

18369466506 is an abundant number, since it is smaller than the sum of its proper divisors (21825112698).

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

18369466506 is a wasteful number, since it uses less digits than its factorization.

18369466506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10104326 (or 10104323 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 18369466506 in words is "eighteen billion, three hundred sixty-nine million, four hundred sixty-six thousand, five hundred six".