20330001077 has 2 divisors, whose sum is σ = 20330001078. Its totient is φ = 20330001076.

The previous prime is 20330001073. The next prime is 20330001163. The reversal of 20330001077 is 77010003302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14219608516 + 6110392561 = 119246^2 + 78169^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330001077 - 2² = 20330001073 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330001071) 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 as a sum of consecutive naturals, namely, 10165000538 + 10165000539.

It is an arithmetic number, because the mean of its divisors is an integer number (10165000539).

Almost surely, 2^20330001077 is an apocalyptic number.

It is an amenable number.

20330001077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330001077 is an equidigital number, since it uses as much as digits as its factorization.

20330001077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 23.

Adding to 20330001077 its reverse (77010003302), we get a palindrome (97340004379).

The spelling of 20330001077 in words is "twenty billion, three hundred thirty million, one thousand, seventy-seven".