2001056177 has 2 divisors, whose sum is σ = 2001056178. Its totient is φ = 2001056176.

The previous prime is 2001056171. The next prime is 2001056203. The reversal of 2001056177 is 7716501002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1408425841 + 592630336 = 37529^2 + 24344^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001056177 - 2²⁰ = 2000007601 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001056171) 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, 1000528088 + 1000528089.

It is an arithmetic number, because the mean of its divisors is an integer number (1000528089).

Almost surely, 2^2001056177 is an apocalyptic number.

It is an amenable number.

2001056177 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001056177 is an equidigital number, since it uses as much as digits as its factorization.

2001056177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 2001056177 is about 44733.1664092762. The cubic root of 2001056177 is about 1260.1427941384.

Adding to 2001056177 its reverse (7716501002), we get a palindrome (9717557179).

The spelling of 2001056177 in words is "two billion, one million, fifty-six thousand, one hundred seventy-seven".