880666321 has 16 divisors (see below), whose sum is σ = 970444800. Its totient is φ = 795992400.

The previous prime is 880666301. The next prime is 880666327. The reversal of 880666321 is 123666088.

It is a cyclic number.

It is not a de Polignac number, because 880666321 - 2²¹ = 878569169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (880666327) 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, 31290 + ... + 52348.

It is an arithmetic number, because the mean of its divisors is an integer number (60652800).

Almost surely, 2^880666321 is an apocalyptic number.

It is an amenable number.

880666321 is a deficient number, since it is larger than the sum of its proper divisors (89778479).

880666321 is a wasteful number, since it uses less digits than its factorization.

880666321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21180.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 880666321 is about 29676.0226614012. The cubic root of 880666321 is about 958.5257758224.

The spelling of 880666321 in words is "eight hundred eighty million, six hundred sixty-six thousand, three hundred twenty-one".