16691613193 has 8 divisors (see below), whose sum is σ = 17094654368. Its totient is φ = 16289247744.

The previous prime is 16691613161. The next prime is 16691613203. The reversal of 16691613193 is 39131619661.

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 16691613193 - 2⁵ = 16691613161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16691614193) 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, 118755 + ... + 217912.

It is an arithmetic number, because the mean of its divisors is an integer number (2136831796).

Almost surely, 2^16691613193 is an apocalyptic number.

It is an amenable number.

16691613193 is a deficient number, since it is larger than the sum of its proper divisors (403041175).

16691613193 is a wasteful number, since it uses less digits than its factorization.

16691613193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337863.

The product of its digits is 157464, while the sum is 46.

The spelling of 16691613193 in words is "sixteen billion, six hundred ninety-one million, six hundred thirteen thousand, one hundred ninety-three".