1216082552 has 16 divisors (see below), whose sum is σ = 2341781160. Its totient is φ = 591607584.

The previous prime is 1216082537. The next prime is 1216082587. The reversal of 1216082552 is 2552806121.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2053898 + ... + 2054489.

Almost surely, 2^1216082552 is an apocalyptic number.

It is an amenable number.

1216082552 is a deficient number, since it is larger than the sum of its proper divisors (1125698608).

1216082552 is a wasteful number, since it uses less digits than its factorization.

1216082552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108430 (or 4108426 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1216082552 is about 34872.3751987157. The cubic root of 1216082552 is about 1067.3848126585.

Adding to 1216082552 its reverse (2552806121), we get a palindrome (3768888673).

The spelling of 1216082552 in words is "one billion, two hundred sixteen million, eighty-two thousand, five hundred fifty-two".