16193350091 has 4 divisors (see below), whose sum is σ = 16569939672. Its totient is φ = 15816760512.

The previous prime is 16193350067. The next prime is 16193350093. The reversal of 16193350091 is 19005339161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16193350091 - 2⁶ = 16193350027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16193350093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188294726 + ... + 188294811.

It is an arithmetic number, because the mean of its divisors is an integer number (4142484918).

Almost surely, 2^16193350091 is an apocalyptic number.

16193350091 is a deficient number, since it is larger than the sum of its proper divisors (376589581).

16193350091 is an equidigital number, since it uses as much as digits as its factorization.

16193350091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376589580.

The product of its (nonzero) digits is 21870, while the sum is 38.

The spelling of 16193350091 in words is "sixteen billion, one hundred ninety-three million, three hundred fifty thousand, ninety-one".