16093597991 has 8 divisors (see below), whose sum is σ = 16137370800. Its totient is φ = 16049885760.

The previous prime is 16093597981. The next prime is 16093597997. The reversal of 16093597991 is 19979539061.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16093597991 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 16093597991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16093597997) 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, 544625 + ... + 573413.

It is an arithmetic number, because the mean of its divisors is an integer number (2017171350).

Almost surely, 2^16093597991 is an apocalyptic number.

16093597991 is a deficient number, since it is larger than the sum of its proper divisors (43772809).

16093597991 is an equidigital number, since it uses as much as digits as its factorization.

16093597991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30289.

The product of its (nonzero) digits is 4133430, while the sum is 59.

The spelling of 16093597991 in words is "sixteen billion, ninety-three million, five hundred ninety-seven thousand, nine hundred ninety-one".