1216616932 has 12 divisors (see below), whose sum is σ = 2202496380. Its totient is φ = 587332256.

The previous prime is 1216616899. The next prime is 1216616941. The reversal of 1216616932 is 2396166121.

It can be written as a sum of positive squares in 2 ways, for example, as 221592996 + 995023936 = 14886^2 + 31544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1216616891 and 1216616900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5243923 + ... + 5244154.

It is an arithmetic number, because the mean of its divisors is an integer number (183541365).

Almost surely, 2^1216616932 is an apocalyptic number.

It is an amenable number.

1216616932 is a deficient number, since it is larger than the sum of its proper divisors (985879448).

1216616932 is a wasteful number, since it uses less digits than its factorization.

1216616932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10488110 (or 10488108 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The square root of 1216616932 is about 34880.0362958527. The cubic root of 1216616932 is about 1067.5411358093.

The spelling of 1216616932 in words is "one billion, two hundred sixteen million, six hundred sixteen thousand, nine hundred thirty-two".