662346663557 has 2 divisors, whose sum is σ = 662346663558. Its totient is φ = 662346663556.

The previous prime is 662346663553. The next prime is 662346663637. The reversal of 662346663557 is 755366643266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662019813316 + 326850241 = 813646^2 + 18079^2 .

It is a cyclic number.

It is not a de Polignac number, because 662346663557 - 2² = 662346663553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 662346663496 and 662346663505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662346663553) 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, 331173331778 + 331173331779.

It is an arithmetic number, because the mean of its divisors is an integer number (331173331779).

Almost surely, 2^662346663557 is an apocalyptic number.

It is an amenable number.

662346663557 is a deficient number, since it is larger than the sum of its proper divisors (1).

662346663557 is an equidigital number, since it uses as much as digits as its factorization.

662346663557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97977600, while the sum is 59.

The spelling of 662346663557 in words is "six hundred sixty-two billion, three hundred forty-six million, six hundred sixty-three thousand, five hundred fifty-seven".