16520211158047 has 8 divisors (see below), whose sum is σ = 16747589588576. Its totient is φ = 16292861759232.

The previous prime is 16520211157987. The next prime is 16520211158063. The reversal of 16520211158047 is 74085111202561.

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

It is a cyclic number.

It is not a de Polignac number, because 16520211158047 - 2²³ = 16520202769439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16520211157994 and 16520211158012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16520211155047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6110778 + ... + 8389399.

It is an arithmetic number, because the mean of its divisors is an integer number (2093448698572).

Almost surely, 2^{16520211158047} is an apocalyptic number.

16520211158047 is a deficient number, since it is larger than the sum of its proper divisors (227378430529).

16520211158047 is a wasteful number, since it uses less digits than its factorization.

16520211158047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14515857.

The product of its (nonzero) digits is 134400, while the sum is 43.

The spelling of 16520211158047 in words is "sixteen trillion, five hundred twenty billion, two hundred eleven million, one hundred fifty-eight thousand, forty-seven".