616653912 has 128 divisors (see below), whose sum is σ = 1862092800. Its totient is φ = 166430208.

The previous prime is 616653907. The next prime is 616653913. The reversal of 616653912 is 219356616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616653913) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 227638 + ... + 230330.

It is an arithmetic number, because the mean of its divisors is an integer number (14547600).

Almost surely, 2^616653912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616653912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (931046400).

616653912 is an abundant number, since it is smaller than the sum of its proper divisors (1245438888).

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

616653912 is a wasteful number, since it uses less digits than its factorization.

616653912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785 (or 2781 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 616653912 is about 24832.5172304380. The cubic root of 616653912 is about 851.1651435486.

The spelling of 616653912 in words is "six hundred sixteen million, six hundred fifty-three thousand, nine hundred twelve".