16321579469 has 8 divisors (see below), whose sum is σ = 17589962880. Its totient is φ = 15055035696.

The previous prime is 16321579459. The next prime is 16321579489. The reversal of 16321579469 is 96497512361.

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 16321579469 - 2³² = 12026612173 is a prime.

It is a super-2 number, since 2×16321579469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16321579469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16321579459) 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, 441449 + ... + 476990.

It is an arithmetic number, because the mean of its divisors is an integer number (2198745360).

Almost surely, 2^16321579469 is an apocalyptic number.

It is an amenable number.

16321579469 is a deficient number, since it is larger than the sum of its proper divisors (1268383411).

16321579469 is a wasteful number, since it uses less digits than its factorization.

16321579469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919819.

The product of its digits is 2449440, while the sum is 53.

The spelling of 16321579469 in words is "sixteen billion, three hundred twenty-one million, five hundred seventy-nine thousand, four hundred sixty-nine".