16508836073 has 4 divisors (see below), whose sum is σ = 16555603668. Its totient is φ = 16462068480.

The previous prime is 16508836067. The next prime is 16508836081. The reversal of 16508836073 is 37063880561.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1980873049 + 14527963024 = 44507^2 + 120532^2 .

It is a cyclic number.

It is not a de Polignac number, because 16508836073 - 2¹⁸ = 16508573929 is a prime.

It is a super-2 number, since 2×16508836073² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16508836093) 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, 23383268 + ... + 23383973.

It is an arithmetic number, because the mean of its divisors is an integer number (4138900917).

Almost surely, 2^16508836073 is an apocalyptic number.

It is an amenable number.

16508836073 is a deficient number, since it is larger than the sum of its proper divisors (46767595).

16508836073 is an equidigital number, since it uses as much as digits as its factorization.

16508836073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46767594.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 16508836073 in words is "sixteen billion, five hundred eight million, eight hundred thirty-six thousand, seventy-three".