18130166208 has 504 divisors, whose sum is σ = 68841152640. Its totient is φ = 4502615040.

The previous prime is 18130166203. The next prime is 18130166213. The reversal of 18130166208 is 80266103181.

18130166208 is a `hidden beast` number, since 1 + 8 + 13 + 0 + 16 + 620 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (18130166203) and next prime (18130166213).

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18130166203) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7139403 + ... + 7141941.

Almost surely, 2^18130166208 is an apocalyptic number.

18130166208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18130166208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34420576320).

18130166208 is an abundant number, since it is smaller than the sum of its proper divisors (50710986432).

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

18130166208 is a wasteful number, since it uses less digits than its factorization.

18130166208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605 (or 2585 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

Adding to 18130166208 its reverse (80266103181), we get a palindrome (98396269389).

The spelling of 18130166208 in words is "eighteen billion, one hundred thirty million, one hundred sixty-six thousand, two hundred eight".