16530161 has 12 divisors (see below), whose sum is σ = 17349696. Its totient is φ = 15746760.

The previous prime is 16530139. The next prime is 16530179. The reversal of 16530161 is 16103561.

It is a happy number.

It is not a de Polignac number, because 16530161 - 2⁶ = 16530097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16530191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98900 + ... + 99066.

It is an arithmetic number, because the mean of its divisors is an integer number (1445808).

Almost surely, 2^16530161 is an apocalyptic number.

It is an amenable number.

16530161 is a deficient number, since it is larger than the sum of its proper divisors (819535).

16530161 is a wasteful number, since it uses less digits than its factorization.

16530161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 16530161 is about 4065.7300697415. The cubic root of 16530161 is about 254.7371943203.

The spelling of 16530161 in words is "sixteen million, five hundred thirty thousand, one hundred sixty-one".