16555220321350 has 24 divisors (see below), whose sum is σ = 30793600601280. Its totient is φ = 6621896557920.

The previous prime is 16555220321303. The next prime is 16555220321357. The reversal of 16555220321350 is 5312302255561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16555220321357) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3037270 + ... + 6506569.

It is an arithmetic number, because the mean of its divisors is an integer number (1283066691720).

Almost surely, 2^{16555220321350} is an apocalyptic number.

16555220321350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16555220321350 is a deficient number, since it is larger than the sum of its proper divisors (14238380279930).

16555220321350 is a wasteful number, since it uses less digits than its factorization.

16555220321350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9578544 (or 9578539 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 16555220321350 in words is "sixteen trillion, five hundred fifty-five billion, two hundred twenty million, three hundred twenty-one thousand, three hundred fifty".