616065912 has 160 divisors (see below), whose sum is σ = 2151515520. Its totient is φ = 160004160.

The previous prime is 616065889. The next prime is 616065917. The reversal of 616065912 is 219560616.

616065912 is a `hidden beast` number, since 6 + 1 + 60 + 6 + 591 + 2 = 666.

616065912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616065917) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43723 + ... + 56069.

It is an arithmetic number, because the mean of its divisors is an integer number (13446972).

Almost surely, 2^616065912 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 616065912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075757760).

616065912 is an abundant number, since it is smaller than the sum of its proper divisors (1535449608).

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

616065912 is a wasteful number, since it uses less digits than its factorization.

616065912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12383 (or 12370 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 616065912 is about 24820.6750915441. The cubic root of 616065912 is about 850.8945194295.

The spelling of 616065912 in words is "six hundred sixteen million, sixty-five thousand, nine hundred twelve".