20164520611 has 2 divisors, whose sum is σ = 20164520612. Its totient is φ = 20164520610.

The previous prime is 20164520569. The next prime is 20164520653. The reversal of 20164520611 is 11602546102.

It is a balanced prime because it is at equal distance from previous prime (20164520569) and next prime (20164520653).

It is a cyclic number.

It is not a de Polignac number, because 20164520611 - 2⁷ = 20164520483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20164520611.

It is not a weakly prime, because it can be changed into another prime (20164526611) 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 as a sum of consecutive naturals, namely, 10082260305 + 10082260306.

It is an arithmetic number, because the mean of its divisors is an integer number (10082260306).

Almost surely, 2^20164520611 is an apocalyptic number.

20164520611 is a deficient number, since it is larger than the sum of its proper divisors (1).

20164520611 is an equidigital number, since it uses as much as digits as its factorization.

20164520611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 20164520611 in words is "twenty billion, one hundred sixty-four million, five hundred twenty thousand, six hundred eleven".