16031778097 has 8 divisors (see below), whose sum is σ = 16184044800. Its totient is φ = 15879605904.

The previous prime is 16031778089. The next prime is 16031778149. The reversal of 16031778097 is 79087713061.

16031778097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16031778097 - 2³ = 16031778089 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 16031778097.

It is not an unprimeable number, because it can be changed into a prime (16031778017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344238 + ... + 388024.

It is an arithmetic number, because the mean of its divisors is an integer number (2023005600).

Almost surely, 2^16031778097 is an apocalyptic number.

It is an amenable number.

16031778097 is a deficient number, since it is larger than the sum of its proper divisors (152266703).

16031778097 is a wasteful number, since it uses less digits than its factorization.

16031778097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47255.

The product of its (nonzero) digits is 444528, while the sum is 49.

The spelling of 16031778097 in words is "sixteen billion, thirty-one million, seven hundred seventy-eight thousand, ninety-seven".