20010020179 has 2 divisors, whose sum is σ = 20010020180. Its totient is φ = 20010020178.

The previous prime is 20010020159. The next prime is 20010020227. The reversal of 20010020179 is 97102001002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010020179 is a prime.

It is not a weakly prime, because it can be changed into another prime (20010020159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005010089 + 10005010090.

It is an arithmetic number, because the mean of its divisors is an integer number (10005010090).

Almost surely, 2^20010020179 is an apocalyptic number.

20010020179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010020179 is an equidigital number, since it uses as much as digits as its factorization.

20010020179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The spelling of 20010020179 in words is "twenty billion, ten million, twenty thousand, one hundred seventy-nine".