202010977667641 has 2 divisors, whose sum is σ = 202010977667642. Its totient is φ = 202010977667640.

The previous prime is 202010977667561. The next prime is 202010977667749. The reversal of 202010977667641 is 146766779010202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178963258621225 + 23047719046416 = 13377715^2 + 4800804^2 .

It is a cyclic number.

It is not a de Polignac number, because 202010977667641 - 2²⁹ = 202010440796729 is a prime.

It is not a weakly prime, because it can be changed into another prime (202010977667141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005488833820 + 101005488833821.

It is an arithmetic number, because the mean of its divisors is an integer number (101005488833821).

Almost surely, 2^{202010977667641} is an apocalyptic number.

It is an amenable number.

202010977667641 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010977667641 is an equidigital number, since it uses as much as digits as its factorization.

202010977667641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 58.

The spelling of 202010977667641 in words is "two hundred two trillion, ten billion, nine hundred seventy-seven million, six hundred sixty-seven thousand, six hundred forty-one".