662202661 has 2 divisors, whose sum is σ = 662202662. Its totient is φ = 662202660.

The previous prime is 662202647. The next prime is 662202677. The reversal of 662202661 is 166202266.

662202661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660798436 + 1404225 = 25706^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 662202661 - 2¹³ = 662194469 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662202601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331101330 + 331101331.

It is an arithmetic number, because the mean of its divisors is an integer number (331101331).

Almost surely, 2^662202661 is an apocalyptic number.

It is an amenable number.

662202661 is a deficient number, since it is larger than the sum of its proper divisors (1).

662202661 is an equidigital number, since it uses as much as digits as its factorization.

662202661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 662202661 is about 25733.2986808920. The cubic root of 662202661 is about 871.6262623665.

The spelling of 662202661 in words is "six hundred sixty-two million, two hundred two thousand, six hundred sixty-one".