1328815116 has 36 divisors (see below), whose sum is σ = 3369918552. Its totient is φ = 441491904.

The previous prime is 1328815109. The next prime is 1328815121. The reversal of 1328815116 is 6115188231.

1328815116 is a `hidden beast` number, since 132 + 8 + 8 + 1 + 511 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1328815116² = 3531499225020186912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49065 + ... + 71168.

Almost surely, 2^1328815116 is an apocalyptic number.

It is an amenable number.

1328815116 is an abundant number, since it is smaller than the sum of its proper divisors (2041103436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1328815116 is a wasteful number, since it uses less digits than its factorization.

1328815116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120550 (or 120545 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 1328815116 is about 36452.9164265358. The cubic root of 1328815116 is about 1099.3977739358.

The spelling of 1328815116 in words is "one billion, three hundred twenty-eight million, eight hundred fifteen thousand, one hundred sixteen".