616321325312244 has 36 divisors (see below), whose sum is σ = 1557924107446980. Its totient is φ = 205440341900160.

The previous prime is 616321325312237. The next prime is 616321325312249. The reversal of 616321325312244 is 442213523123616.

616321325312244 is a `hidden beast` number, since 6 + 1 + 6 + 3 + 2 + 1 + 325 + 312 + 2 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 473538422639844 + 142782902672400 = 21760938^2 + 11949180^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 616321325312244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616321325312249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131558902 + ... + 136163090.

It is an arithmetic number, because the mean of its divisors is an integer number (43275669651305).

Almost surely, 2^{616321325312244} is an apocalyptic number.

It is an amenable number.

616321325312244 is an abundant number, since it is smaller than the sum of its proper divisors (941602782134736).

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

616321325312244 is a wasteful number, since it uses less digits than its factorization.

616321325312244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322560 (or 8322555 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 616321325312244 in words is "six hundred sixteen trillion, three hundred twenty-one billion, three hundred twenty-five million, three hundred twelve thousand, two hundred forty-four".