16404564345 has 64 divisors (see below), whose sum is σ = 29462544384. Its totient is φ = 7739400960.

The previous prime is 16404564313. The next prime is 16404564353. The reversal of 16404564345 is 54346540461.

It is not a de Polignac number, because 16404564345 - 2⁵ = 16404564313 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16404564297 and 16404564306.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 609462 + ... + 635808.

It is an arithmetic number, because the mean of its divisors is an integer number (460352256).

Almost surely, 2^16404564345 is an apocalyptic number.

16404564345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16404564345 is a deficient number, since it is larger than the sum of its proper divisors (13057980039).

16404564345 is a wasteful number, since it uses less digits than its factorization.

16404564345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26502.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 16404564345 in words is "sixteen billion, four hundred four million, five hundred sixty-four thousand, three hundred forty-five".