20164465133 has 4 divisors (see below), whose sum is σ = 20248835520. Its totient is φ = 20080094748.

The previous prime is 20164465117. The next prime is 20164465151. The reversal of 20164465133 is 33156446102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20164465133 - 2⁴ = 20164465117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20164465093 and 20164465102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20164465163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42184835 + ... + 42185312.

It is an arithmetic number, because the mean of its divisors is an integer number (5062208880).

Almost surely, 2^20164465133 is an apocalyptic number.

It is an amenable number.

20164465133 is a deficient number, since it is larger than the sum of its proper divisors (84370387).

20164465133 is an equidigital number, since it uses as much as digits as its factorization.

20164465133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84370386.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 20164465133 in words is "twenty billion, one hundred sixty-four million, four hundred sixty-five thousand, one hundred thirty-three".