16023312533 has 4 divisors (see below), whose sum is σ = 16188501420. Its totient is φ = 15858123648.

The previous prime is 16023312527. The next prime is 16023312563. The reversal of 16023312533 is 33521332061.

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 7165114609 + 8858197924 = 84647^2 + 94118^2 .

It is a cyclic number.

It is not a de Polignac number, because 16023312533 - 2⁴ = 16023312517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16023312496 and 16023312505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16023312563) 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, 82594298 + ... + 82594491.

It is an arithmetic number, because the mean of its divisors is an integer number (4047125355).

Almost surely, 2^16023312533 is an apocalyptic number.

It is an amenable number.

16023312533 is a deficient number, since it is larger than the sum of its proper divisors (165188887).

16023312533 is an equidigital number, since it uses as much as digits as its factorization.

16023312533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165188886.

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 16023312533 its reverse (33521332061), we get a palindrome (49544644594).

The spelling of 16023312533 in words is "sixteen billion, twenty-three million, three hundred twelve thousand, five hundred thirty-three".