16505044354 has 32 divisors (see below), whose sum is σ = 26593619760. Its totient is φ = 7654735872.

The previous prime is 16505044331. The next prime is 16505044403. The reversal of 16505044354 is 45344050561.

It can be written as a sum of positive squares in 8 ways, for example, as 8463080025 + 8041964329 = 91995^2 + 89677^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6136642 + ... + 6139330.

Almost surely, 2^16505044354 is an apocalyptic number.

16505044354 is a deficient number, since it is larger than the sum of its proper divisors (10088575406).

16505044354 is a wasteful number, since it uses less digits than its factorization.

16505044354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 16505044354 in words is "sixteen billion, five hundred five million, forty-four thousand, three hundred fifty-four".