18416434368 has 112 divisors (see below), whose sum is σ = 50366029824. Its totient is φ = 5932830720.

The previous prime is 18416434343. The next prime is 18416434451. The reversal of 18416434368 is 86343461481.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5813521 + ... + 5816687.

Almost surely, 2^18416434368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18416434368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25183014912).

18416434368 is an abundant number, since it is smaller than the sum of its proper divisors (31949595456).

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

18416434368 is a wasteful number, since it uses less digits than its factorization.

18416434368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190 (or 4180 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The spelling of 18416434368 in words is "eighteen billion, four hundred sixteen million, four hundred thirty-four thousand, three hundred sixty-eight".