16383691121 has 8 divisors (see below), whose sum is σ = 18889920384. Its totient is φ = 13918887360.

The previous prime is 16383691117. The next prime is 16383691133. The reversal of 16383691121 is 12119638361.

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

It is not a de Polignac number, because 16383691121 - 2² = 16383691117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16383691111) 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, 10355525 + ... + 10357106.

It is an arithmetic number, because the mean of its divisors is an integer number (2361240048).

Almost surely, 2^16383691121 is an apocalyptic number.

It is an amenable number.

16383691121 is a deficient number, since it is larger than the sum of its proper divisors (2506229263).

16383691121 is a wasteful number, since it uses less digits than its factorization.

16383691121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20712751.

The product of its digits is 46656, while the sum is 41.

The spelling of 16383691121 in words is "sixteen billion, three hundred eighty-three million, six hundred ninety-one thousand, one hundred twenty-one".