1320755018 has 32 divisors (see below), whose sum is σ = 2317947840. Its totient is φ = 558005760.

The previous prime is 1320755003. The next prime is 1320755027. The reversal of 1320755018 is 8105570231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7655 + ... + 51962.

It is an arithmetic number, because the mean of its divisors is an integer number (72435870).

Almost surely, 2^1320755018 is an apocalyptic number.

1320755018 is a deficient number, since it is larger than the sum of its proper divisors (997192822).

1320755018 is a wasteful number, since it uses less digits than its factorization.

1320755018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59702.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1320755018 is about 36342.1933570334. The cubic root of 1320755018 is about 1097.1704184851.

The spelling of 1320755018 in words is "one billion, three hundred twenty million, seven hundred fifty-five thousand, eighteen".