665463254403 has 16 divisors (see below), whose sum is σ = 921727199232. Its totient is φ = 426725544000.

The previous prime is 665463254399. The next prime is 665463254459. The reversal of 665463254403 is 304452364566.

It is not a de Polignac number, because 665463254403 - 2² = 665463254399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (665463254003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38091763 + ... + 38109228.

It is an arithmetic number, because the mean of its divisors is an integer number (57607949952).

Almost surely, 2^665463254403 is an apocalyptic number.

665463254403 is a deficient number, since it is larger than the sum of its proper divisors (256263944829).

665463254403 is a wasteful number, since it uses less digits than its factorization.

665463254403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76201106.

The product of its (nonzero) digits is 6220800, while the sum is 48.

The spelling of 665463254403 in words is "six hundred sixty-five billion, four hundred sixty-three million, two hundred fifty-four thousand, four hundred three".