16133857291 has 8 divisors (see below), whose sum is σ = 16290687600. Its totient is φ = 15977139168.

The previous prime is 16133857241. The next prime is 16133857297. The reversal of 16133857291 is 19275833161.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16133857291 - 2⁹ = 16133856779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16133857297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276985 + ... + 330133.

It is an arithmetic number, because the mean of its divisors is an integer number (2036335950).

Almost surely, 2^16133857291 is an apocalyptic number.

16133857291 is a deficient number, since it is larger than the sum of its proper divisors (156830309).

16133857291 is a wasteful number, since it uses less digits than its factorization.

16133857291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56093.

The product of its digits is 272160, while the sum is 46.

The spelling of 16133857291 in words is "sixteen billion, one hundred thirty-three million, eight hundred fifty-seven thousand, two hundred ninety-one".