662665044403 has 2 divisors, whose sum is σ = 662665044404. Its totient is φ = 662665044402.

The previous prime is 662665044317. The next prime is 662665044443. The reversal of 662665044403 is 304440566266.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662665044403 is a prime.

It is a super-2 number, since 2×662665044403² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (662665044443) 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, 331332522201 + 331332522202.

It is an arithmetic number, because the mean of its divisors is an integer number (331332522202).

Almost surely, 2^662665044403 is an apocalyptic number.

662665044403 is a deficient number, since it is larger than the sum of its proper divisors (1).

662665044403 is an equidigital number, since it uses as much as digits as its factorization.

662665044403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 662665044403 in words is "six hundred sixty-two billion, six hundred sixty-five million, forty-four thousand, four hundred three".