16548984225 has 18 divisors (see below), whose sum is σ = 29641069926. Its totient is φ = 8826124800.

The previous prime is 16548984223. The next prime is 16548984233. The reversal of 16548984225 is 52248984561.

16548984225 is a `hidden beast` number, since 1 + 6 + 548 + 98 + 4 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1431789921 + 15117194304 = 37839^2 + 122952^2 .

It is not a de Polignac number, because 16548984225 - 2¹ = 16548984223 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16548984223) 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 17 ways as a sum of consecutive naturals, for example, 36775296 + ... + 36775745.

It is an arithmetic number, because the mean of its divisors is an integer number (1646726107).

Almost surely, 2^16548984225 is an apocalyptic number.

16548984225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16548984225 is a deficient number, since it is larger than the sum of its proper divisors (13092085701).

16548984225 is a wasteful number, since it uses less digits than its factorization.

16548984225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73551057 (or 73551049 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 16548984225 in words is "sixteen billion, five hundred forty-eight million, nine hundred eighty-four thousand, two hundred twenty-five".