16449853403059 has 4 divisors (see below), whose sum is σ = 16719523131040. Its totient is φ = 16180183675080.

The previous prime is 16449853403051. The next prime is 16449853403063. The reversal of 16449853403059 is 95030435894461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16449853403059 - 2³ = 16449853403051 is a prime.

It is a super-2 number, since 2×16449853403059² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61), and also a Moran number because the ratio is a prime number: 269669727919 = 16449853403059 / (1 + 6 + 4 + 4 + 9 + 8 + 5 + 3 + 4 + 0 + 3 + 0 + 5 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16449853402988 and 16449853403006.

It is not an unprimeable number, because it can be changed into a prime (16449853403051) 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, 134834863899 + ... + 134834864020.

It is an arithmetic number, because the mean of its divisors is an integer number (4179880782760).

Almost surely, 2^{16449853403059} is an apocalyptic number.

16449853403059 is a deficient number, since it is larger than the sum of its proper divisors (269669727981).

16449853403059 is an equidigital number, since it uses as much as digits as its factorization.

16449853403059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269669727980.

The product of its (nonzero) digits is 55987200, while the sum is 61.

The spelling of 16449853403059 in words is "sixteen trillion, four hundred forty-nine billion, eight hundred fifty-three million, four hundred three thousand, fifty-nine".