662106152261 has 2 divisors, whose sum is σ = 662106152262. Its totient is φ = 662106152260.

The previous prime is 662106152179. The next prime is 662106152273. The reversal of 662106152261 is 162251601266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645000128161 + 17106024100 = 803119^2 + 130790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662106152261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662106152761) 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, 331053076130 + 331053076131.

It is an arithmetic number, because the mean of its divisors is an integer number (331053076131).

Almost surely, 2^662106152261 is an apocalyptic number.

It is an amenable number.

662106152261 is a deficient number, since it is larger than the sum of its proper divisors (1).

662106152261 is an equidigital number, since it uses as much as digits as its factorization.

662106152261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 662106152261 in words is "six hundred sixty-two billion, one hundred six million, one hundred fifty-two thousand, two hundred sixty-one".