16202535530161 has 4 divisors (see below), whose sum is σ = 16202561971492. Its totient is φ = 16202509088832.

The previous prime is 16202535530033. The next prime is 16202535530189. The reversal of 16202535530161 is 16103553520261.

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 537206907136 + 15665328623025 = 732944^2 + 3957945^2 .

It is a cyclic number.

It is not a de Polignac number, because 16202535530161 - 2⁷ = 16202535530033 is a prime.

It is a super-2 number, since 2×16202535530161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16202535530191) 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, 12279156 + ... + 13534501.

It is an arithmetic number, because the mean of its divisors is an integer number (4050640492873).

Almost surely, 2^{16202535530161} is an apocalyptic number.

It is an amenable number.

16202535530161 is a deficient number, since it is larger than the sum of its proper divisors (26441331).

16202535530161 is an equidigital number, since it uses as much as digits as its factorization.

16202535530161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26441330.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 16202535530161 in words is "sixteen trillion, two hundred two billion, five hundred thirty-five million, five hundred thirty thousand, one hundred sixty-one".