16033554091 has 2 divisors, whose sum is σ = 16033554092. Its totient is φ = 16033554090.

The previous prime is 16033554079. The next prime is 16033554167. The reversal of 16033554091 is 19045533061.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16033554091 - 2¹¹ = 16033552043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16033554091.

It is not a weakly prime, because it can be changed into another prime (16033554001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8016777045 + 8016777046.

It is an arithmetic number, because the mean of its divisors is an integer number (8016777046).

Almost surely, 2^16033554091 is an apocalyptic number.

16033554091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16033554091 is an equidigital number, since it uses as much as digits as its factorization.

16033554091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 16033554091 in words is "sixteen billion, thirty-three million, five hundred fifty-four thousand, ninety-one".