16335820438 has 64 divisors (see below), whose sum is σ = 30139776000. Its totient is φ = 6481198080.

The previous prime is 16335820429. The next prime is 16335820439. The reversal of 16335820438 is 83402853361.

It is a junction number, because it is equal to n+sod(n) for n = 16335820394 and 16335820403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16335820439) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9614113 + ... + 9615811.

It is an arithmetic number, because the mean of its divisors is an integer number (470934000).

Almost surely, 2^16335820438 is an apocalyptic number.

16335820438 is a deficient number, since it is larger than the sum of its proper divisors (13803955562).

16335820438 is a wasteful number, since it uses less digits than its factorization.

16335820438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 16335820438 in words is "sixteen billion, three hundred thirty-five million, eight hundred twenty thousand, four hundred thirty-eight".