16555345104434 has 8 divisors (see below), whose sum is σ = 24853422769308. Its totient is φ = 8270870848000.

The previous prime is 16555345104421. The next prime is 16555345104439. The reversal of 16555345104434 is 43440154355561.

It can be written as a sum of positive squares in 2 ways, for example, as 16443389952025 + 111955152409 = 4055045^2 + 334597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16555345104439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400849067 + ... + 3400853934.

Almost surely, 2^{16555345104434} is an apocalyptic number.

16555345104434 is a deficient number, since it is larger than the sum of its proper divisors (8298077664874).

16555345104434 is a wasteful number, since it uses less digits than its factorization.

16555345104434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801704220.

The product of its (nonzero) digits is 8640000, while the sum is 50.

Adding to 16555345104434 its reverse (43440154355561), we get a palindrome (59995499459995).

The spelling of 16555345104434 in words is "sixteen trillion, five hundred fifty-five billion, three hundred forty-five million, one hundred four thousand, four hundred thirty-four".