20091133067 has 4 divisors (see below), whose sum is σ = 20091422400. Its totient is φ = 20090843736.

The previous prime is 20091133021. The next prime is 20091133109. The reversal of 20091133067 is 76033119002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20091133067 - 2⁶ = 20091133003 is a prime.

It is a deceptive number, since it divides R_20091133066.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20091133267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28934 + ... + 202532.

It is an arithmetic number, because the mean of its divisors is an integer number (5022855600).

Almost surely, 2^20091133067 is an apocalyptic number.

20091133067 is the 115733-rd pentagonal number.

20091133067 is a deficient number, since it is larger than the sum of its proper divisors (289333).

20091133067 is a wasteful number, since it uses less digits than its factorization.

20091133067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289332.

The product of its (nonzero) digits is 6804, while the sum is 32.

The spelling of 20091133067 in words is "twenty billion, ninety-one million, one hundred thirty-three thousand, sixty-seven".