16005506344 has 8 divisors (see below), whose sum is σ = 30010324410. Its totient is φ = 8002753168.

The previous prime is 16005506329. The next prime is 16005506359. The reversal of 16005506344 is 44360550061.

It is an interprime number because it is at equal distance from previous prime (16005506329) and next prime (16005506359).

It can be written as a sum of positive squares in only one way, i.e., 13949972100 + 2055534244 = 118110^2 + 45338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000344139 + ... + 1000344154.

Almost surely, 2^16005506344 is an apocalyptic number.

It is an amenable number.

16005506344 is a deficient number, since it is larger than the sum of its proper divisors (14004818066).

16005506344 is a wasteful number, since it uses less digits than its factorization.

16005506344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000688299 (or 2000688295 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 16005506344 in words is "sixteen billion, five million, five hundred six thousand, three hundred forty-four".