20001332179 has 2 divisors, whose sum is σ = 20001332180. Its totient is φ = 20001332178.

The previous prime is 20001332089. The next prime is 20001332191. The reversal of 20001332179 is 97123310002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20001332179 - 2⁹ = 20001331667 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001332479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000666089 + 10000666090.

It is an arithmetic number, because the mean of its divisors is an integer number (10000666090).

Almost surely, 2^20001332179 is an apocalyptic number.

20001332179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001332179 is an equidigital number, since it uses as much as digits as its factorization.

20001332179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The spelling of 20001332179 in words is "twenty billion, one million, three hundred thirty-two thousand, one hundred seventy-nine".