8623666663268 has 48 divisors (see below), whose sum is σ = 15999423326208. Its totient is φ = 4053048384000.

The previous prime is 8623666663237. The next prime is 8623666663273.

8623666663268 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a junction number, because it is equal to n+sod(n) for n = 8623666663198 and 8623666663207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401258003 + ... + 401279493.

It is an arithmetic number, because the mean of its divisors is an integer number (333321319296).

Almost surely, 2^{8623666663268} is an apocalyptic number.

It is an amenable number.

8623666663268 is a deficient number, since it is larger than the sum of its proper divisors (7375756662940).

8623666663268 is a wasteful number, since it uses less digits than its factorization.

8623666663268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28724 (or 28722 counting only the distinct ones).

The product of its digits is 644972544, while the sum is 68.

The spelling of 8623666663268 in words is "eight trillion, six hundred twenty-three billion, six hundred sixty-six million, six hundred sixty-three thousand, two hundred sixty-eight".