616512232 has 16 divisors (see below), whose sum is σ = 1321097760. Its totient is φ = 264219504.

The previous prime is 616512227. The next prime is 616512269. The reversal of 616512232 is 232215616.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 616512232.

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, 5504518 + ... + 5504629.

It is an arithmetic number, because the mean of its divisors is an integer number (82568610).

Almost surely, 2^616512232 is an apocalyptic number.

It is an amenable number.

616512232 is an abundant number, since it is smaller than the sum of its proper divisors (704585528).

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

616512232 is a wasteful number, since it uses less digits than its factorization.

616512232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11009160 (or 11009156 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 616512232 is about 24829.6643553633. The cubic root of 616512232 is about 851.0999517600.

Adding to 616512232 its reverse (232215616), we get a palindrome (848727848).

The spelling of 616512232 in words is "six hundred sixteen million, five hundred twelve thousand, two hundred thirty-two".