662755720667 has 2 divisors, whose sum is σ = 662755720668. Its totient is φ = 662755720666.

The previous prime is 662755720567. The next prime is 662755720733. The reversal of 662755720667 is 766027557266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 662755720667 - 2⁸ = 662755720411 is a prime.

It is a super-3 number, since 3×662755720667³ (a number of 36 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (662755720567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331377860333 + 331377860334.

It is an arithmetic number, because the mean of its divisors is an integer number (331377860334).

Almost surely, 2^662755720667 is an apocalyptic number.

662755720667 is a deficient number, since it is larger than the sum of its proper divisors (1).

662755720667 is an equidigital number, since it uses as much as digits as its factorization.

662755720667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44452800, while the sum is 59.

The spelling of 662755720667 in words is "six hundred sixty-two billion, seven hundred fifty-five million, seven hundred twenty thousand, six hundred sixty-seven".