16206253091 has 48 divisors (see below), whose sum is σ = 20200845600. Its totient is φ = 12925204992.

The previous prime is 16206253081. The next prime is 16206253093. The reversal of 16206253091 is 19035260261.

It is a de Polignac number, because none of the positive numbers 2^k-16206253091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16206253093) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26437301 + ... + 26437913.

It is an arithmetic number, because the mean of its divisors is an integer number (420850950).

Almost surely, 2^16206253091 is an apocalyptic number.

16206253091 is a deficient number, since it is larger than the sum of its proper divisors (3994592509).

16206253091 is a wasteful number, since it uses less digits than its factorization.

16206253091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 16206253091 in words is "sixteen billion, two hundred six million, two hundred fifty-three thousand, ninety-one".