16330262161 has 4 divisors (see below), whose sum is σ = 16339453732. Its totient is φ = 16321070592.

The previous prime is 16330262159. The next prime is 16330262191. The reversal of 16330262161 is 16126203361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16126203361 = 257 ⋅62747873.

It can be written as a sum of positive squares in 2 ways, for example, as 12539520400 + 3790741761 = 111980^2 + 61569^2 .

It is a cyclic number.

It is not a de Polignac number, because 16330262161 - 2¹ = 16330262159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16330262191) 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, 4593120 + ... + 4596673.

It is an arithmetic number, because the mean of its divisors is an integer number (4084863433).

Almost surely, 2^16330262161 is an apocalyptic number.

It is an amenable number.

16330262161 is a deficient number, since it is larger than the sum of its proper divisors (9191571).

16330262161 is an equidigital number, since it uses as much as digits as its factorization.

16330262161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191570.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 16330262161 in words is "sixteen billion, three hundred thirty million, two hundred sixty-two thousand, one hundred sixty-one".