665674103 has 2 divisors, whose sum is σ = 665674104. Its totient is φ = 665674102.

The previous prime is 665674069. The next prime is 665674111. The reversal of 665674103 is 301476566.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 665674103 - 2¹⁴ = 665657719 is a prime.

It is a super-2 number, since 2×665674103² = 886244022809709218, which contains 22 as substring.

It is a Chen prime.

It is equal to p_34565609 and since 665674103 and 34565609 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (665674123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332837051 + 332837052.

It is an arithmetic number, because the mean of its divisors is an integer number (332837052).

Almost surely, 2^665674103 is an apocalyptic number.

665674103 is a deficient number, since it is larger than the sum of its proper divisors (1).

665674103 is an equidigital number, since it uses as much as digits as its factorization.

665674103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 665674103 is about 25800.6609023878. The cubic root of 665674103 is about 873.1467072845.

The spelling of 665674103 in words is "six hundred sixty-five million, six hundred seventy-four thousand, one hundred three".