18163474560 has 1536 divisors, whose sum is σ = 86735577600. Its totient is φ = 3503554560.

The previous prime is 18163474513. The next prime is 18163474591. The reversal of 18163474560 is 6547436181.

18163474560 is a `hidden beast` number, since 1 + 8 + 1 + 634 + 7 + 4 + 5 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 248814684 + ... + 248814756.

It is an arithmetic number, because the mean of its divisors is an integer number (56468475).

Almost surely, 2^18163474560 is an apocalyptic number.

18163474560 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 18163474560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43367788800).

18163474560 is an abundant number, since it is smaller than the sum of its proper divisors (68572103040).

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

18163474560 is a wasteful number, since it uses less digits than its factorization.

18163474560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 18163474560 in words is "eighteen billion, one hundred sixty-three million, four hundred seventy-four thousand, five hundred sixty".