1328880166 has 16 divisors (see below), whose sum is σ = 2064410640. Its totient is φ = 640795680.

The previous prime is 1328880143. The next prime is 1328880169. The reversal of 1328880166 is 6610888231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328880169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39976 + ... + 65236.

It is an arithmetic number, because the mean of its divisors is an integer number (129025665).

Almost surely, 2^1328880166 is an apocalyptic number.

1328880166 is a deficient number, since it is larger than the sum of its proper divisors (735530474).

1328880166 is a wasteful number, since it uses less digits than its factorization.

1328880166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26199.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1328880166 is about 36453.8086624704. The cubic root of 1328880166 is about 1099.4157133911.

The spelling of 1328880166 in words is "one billion, three hundred twenty-eight million, eight hundred eighty thousand, one hundred sixty-six".