16121316893 has 8 divisors (see below), whose sum is σ = 17613831456. Its totient is φ = 14633292400.

The previous prime is 16121316829. The next prime is 16121316901. The reversal of 16121316893 is 39861312161.

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 16121316893 - 2⁶ = 16121316829 is a prime.

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 16121316893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121216893) 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, 1115003 + ... + 1129368.

It is an arithmetic number, because the mean of its divisors is an integer number (2201728932).

Almost surely, 2^16121316893 is an apocalyptic number.

It is an amenable number.

16121316893 is a deficient number, since it is larger than the sum of its proper divisors (1492514563).

16121316893 is a wasteful number, since it uses less digits than its factorization.

16121316893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245035.

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

The spelling of 16121316893 in words is "sixteen billion, one hundred twenty-one million, three hundred sixteen thousand, eight hundred ninety-three".