662346663637 has 2 divisors, whose sum is σ = 662346663638. Its totient is φ = 662346663636.

The previous prime is 662346663557. The next prime is 662346663703. The reversal of 662346663637 is 736366643266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 622771927281 + 39574736356 = 789159^2 + 198934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662346663637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662346663137) 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, 331173331818 + 331173331819.

It is an arithmetic number, because the mean of its divisors is an integer number (331173331819).

Almost surely, 2^662346663637 is an apocalyptic number.

It is an amenable number.

662346663637 is a deficient number, since it is larger than the sum of its proper divisors (1).

662346663637 is an equidigital number, since it uses as much as digits as its factorization.

662346663637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70543872, while the sum is 58.

The spelling of 662346663637 in words is "six hundred sixty-two billion, three hundred forty-six million, six hundred sixty-three thousand, six hundred thirty-seven".