18163414080 has 784 divisors, whose sum is σ = 75957379200. Its totient is φ = 4133348352.

The previous prime is 18163414069. The next prime is 18163414081. The reversal of 18163414080 is 8041436181.

It is a happy number.

18163414080 is a `hidden beast` number, since 1 + 8 + 1 + 634 + 14 + 0 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (784).

It is a super-2 number, since 2×18163414080² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (18163414081) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 80014927 + ... + 80015153.

Almost surely, 2^18163414080 is an apocalyptic number.

18163414080 is a gapful number since it is divisible by the number (10) 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 18163414080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37978689600).

18163414080 is an abundant number, since it is smaller than the sum of its proper divisors (57793965120).

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

18163414080 is an frugal number, since it uses more digits than its factorization.

18163414080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 18163414080 in words is "eighteen billion, one hundred sixty-three million, four hundred fourteen thousand, eighty".