666023903348 has 24 divisors (see below), whose sum is σ = 1169734251840. Its totient is φ = 331816115520.

The previous prime is 666023903329. The next prime is 666023903351. The reversal of 666023903348 is 843309320666.

It is a junction number, because it is equal to n+sod(n) for n = 666023903296 and 666023903305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087115 + ... + 1585517.

It is an arithmetic number, because the mean of its divisors is an integer number (48738927160).

Almost surely, 2^666023903348 is an apocalyptic number.

It is an amenable number.

666023903348 is a deficient number, since it is larger than the sum of its proper divisors (503710348492).

666023903348 is a wasteful number, since it uses less digits than its factorization.

666023903348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499607 (or 499605 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 50.

The spelling of 666023903348 in words is "six hundred sixty-six billion, twenty-three million, nine hundred three thousand, three hundred forty-eight".