16261132223 has 8 divisors (see below), whose sum is σ = 18586318848. Its totient is φ = 13936487544.

The previous prime is 16261132207. The next prime is 16261132229. The reversal of 16261132223 is 32223116261.

It is a happy number.

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

It is not a de Polignac number, because 16261132223 - 2⁴ = 16261132207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16261132229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69011 + ... + 193092.

It is an arithmetic number, because the mean of its divisors is an integer number (2323289856).

Almost surely, 2^16261132223 is an apocalyptic number.

16261132223 is a deficient number, since it is larger than the sum of its proper divisors (2325186625).

16261132223 is an equidigital number, since it uses as much as digits as its factorization.

16261132223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270973.

The product of its digits is 5184, while the sum is 29.

Adding to 16261132223 its reverse (32223116261), we get a palindrome (48484248484).

The spelling of 16261132223 in words is "sixteen billion, two hundred sixty-one million, one hundred thirty-two thousand, two hundred twenty-three".