665603450348 has 12 divisors (see below), whose sum is σ = 1164860113032. Its totient is φ = 332786275200.

The previous prime is 665603450341. The next prime is 665603450423. The reversal of 665603450348 is 843054306566.

It is a super-2 number, since 2×665603450348² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 665603450296 and 665603450305.

It is not an unprimeable number, because it can be changed into a prime (665603450341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3765290 + ... + 3938097.

It is an arithmetic number, because the mean of its divisors is an integer number (97071676086).

Almost surely, 2^665603450348 is an apocalyptic number.

It is an amenable number.

665603450348 is a deficient number, since it is larger than the sum of its proper divisors (499256662684).

665603450348 is a wasteful number, since it uses less digits than its factorization.

665603450348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7724992 (or 7724990 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 665603450348 in words is "six hundred sixty-five billion, six hundred three million, four hundred fifty thousand, three hundred forty-eight".