16200016191 has 6 divisors (see below), whose sum is σ = 23400023400. Its totient is φ = 10800010788.

The previous prime is 16200016187. The next prime is 16200016237. The reversal of 16200016191 is 19161000261.

It is not a de Polignac number, because 16200016191 - 2² = 16200016187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16200016291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 900000891 + ... + 900000908.

It is an arithmetic number, because the mean of its divisors is an integer number (3900003900).

Almost surely, 2^16200016191 is an apocalyptic number.

16200016191 is a deficient number, since it is larger than the sum of its proper divisors (7200007209).

16200016191 is a wasteful number, since it uses less digits than its factorization.

16200016191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800001805 (or 1800001802 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 16200016191 in words is "sixteen billion, two hundred million, sixteen thousand, one hundred ninety-one".