16845198149250 has 160 divisors (see below), whose sum is σ = 47111202289008. Its totient is φ = 4491619776000.

The previous prime is 16845198149237. The next prime is 16845198149261. The reversal of 16845198149250 is 5294189154861.

16845198149250 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 5 + 1 + 98 + 1 + 492 + 50 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 993707928801 + 15851490220449 = 996849^2 + 3981393^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 247846272 + ... + 247914228.

Almost surely, 2^{16845198149250} is an apocalyptic number.

16845198149250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16845198149250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23555601144504).

16845198149250 is an abundant number, since it is smaller than the sum of its proper divisors (30266004139758).

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

16845198149250 is a wasteful number, since it uses less digits than its factorization.

16845198149250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80227 (or 80208 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 63.

The spelling of 16845198149250 in words is "sixteen trillion, eight hundred forty-five billion, one hundred ninety-eight million, one hundred forty-nine thousand, two hundred fifty".