16198244568 has 240 divisors, whose sum is σ = 50508473400. Its totient is φ = 4809991680.

The previous prime is 16198244563. The next prime is 16198244603. The reversal of 16198244568 is 86544289161.

16198244568 is a `hidden beast` number, since 1 + 6 + 198 + 2 + 445 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16198244563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 20022148 + ... + 20022956.

Almost surely, 2^16198244568 is an apocalyptic number.

16198244568 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 16198244568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25254236700).

16198244568 is an abundant number, since it is smaller than the sum of its proper divisors (34310228832).

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

16198244568 is a wasteful number, since it uses less digits than its factorization.

16198244568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 878 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 16198244568 in words is "sixteen billion, one hundred ninety-eight million, two hundred forty-four thousand, five hundred sixty-eight".