613998416544 has 144 divisors (see below), whose sum is σ = 1692455208192. Its totient is φ = 194886134784.

The previous prime is 613998416501. The next prime is 613998416561. The reversal of 613998416544 is 445614899316.

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 23 ways as a sum of consecutive naturals, for example, 11297724 + ... + 11351940.

It is an arithmetic number, because the mean of its divisors is an integer number (11753161168).

Almost surely, 2^613998416544 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 613998416544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846227604096).

613998416544 is an abundant number, since it is smaller than the sum of its proper divisors (1078456791648).

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

613998416544 is a wasteful number, since it uses less digits than its factorization.

613998416544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54499 (or 54468 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 60.

The spelling of 613998416544 in words is "six hundred thirteen billion, nine hundred ninety-eight million, four hundred sixteen thousand, five hundred forty-four".