16133402331 has 6 divisors (see below), whose sum is σ = 23303803380. Its totient is φ = 10755601548.

The previous prime is 16133402291. The next prime is 16133402359. The reversal of 16133402331 is 13320433161.

16133402331 is a `hidden beast` number, since 1 + 613 + 3 + 40 + 2 + 3 + 3 + 1 = 666.

16133402331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16133402331 - 2²⁷ = 15999184603 is a prime.

It is a super-3 number, since 3×16133402331³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 16133402295 and 16133402304.

It is not an unprimeable number, because it can be changed into a prime (16133402381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 896300121 + ... + 896300138.

It is an arithmetic number, because the mean of its divisors is an integer number (3883967230).

Almost surely, 2^16133402331 is an apocalyptic number.

16133402331 is a deficient number, since it is larger than the sum of its proper divisors (7170401049).

16133402331 is a wasteful number, since it uses less digits than its factorization.

16133402331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792600265 (or 1792600262 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 16133402331 its reverse (13320433161), we get a palindrome (29453835492).

The spelling of 16133402331 in words is "sixteen billion, one hundred thirty-three million, four hundred two thousand, three hundred thirty-one".