18465481246608 has 240 divisors, whose sum is σ = 59367361584960. Its totient is φ = 5298902323200.

The previous prime is 18465481246601. The next prime is 18465481246613. The reversal of 18465481246608 is 80664218456481.

It is a happy number.

18465481246608 is a `hidden beast` number, since 1 + 8 + 4 + 6 + 5 + 4 + 8 + 12 + 4 + 6 + 608 = 666.

It is not an unprimeable number, because it can be changed into a prime (18465481246601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73338660 + ... + 73590012.

It is an arithmetic number, because the mean of its divisors is an integer number (247364006604).

Almost surely, 2^{18465481246608} is an apocalyptic number.

18465481246608 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 18465481246608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29683680792480).

18465481246608 is an abundant number, since it is smaller than the sum of its proper divisors (40901880338352).

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

18465481246608 is a wasteful number, since it uses less digits than its factorization.

18465481246608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253838 (or 253829 counting only the distinct ones).

The product of its (nonzero) digits is 70778880, while the sum is 63.

The spelling of 18465481246608 in words is "eighteen trillion, four hundred sixty-five billion, four hundred eighty-one million, two hundred forty-six thousand, six hundred eight".