16133821503 has 8 divisors (see below), whose sum is σ = 21515415168. Its totient is φ = 10754054424.

The previous prime is 16133821447. The next prime is 16133821541. The reversal of 16133821503 is 30512833161.

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

It is not a de Polignac number, because 16133821503 - 2⁹ = 16133820991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16133821003) 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, 435901 + ... + 471462.

It is an arithmetic number, because the mean of its divisors is an integer number (2689426896).

Almost surely, 2^16133821503 is an apocalyptic number.

16133821503 is a deficient number, since it is larger than the sum of its proper divisors (5381593665).

16133821503 is an equidigital number, since it uses as much as digits as its factorization.

16133821503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913293.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 16133821503 in words is "sixteen billion, one hundred thirty-three million, eight hundred twenty-one thousand, five hundred three".