616722227616 has 96 divisors (see below), whose sum is σ = 1767060792000. Its totient is φ = 186780487680.

The previous prime is 616722227461. The next prime is 616722227621.

616722227616 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 1725960 + ... + 2052408.

It is an arithmetic number, because the mean of its divisors is an integer number (18406883250).

Almost surely, 2^616722227616 is an apocalyptic number.

616722227616 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616722227616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (883530396000).

616722227616 is an abundant number, since it is smaller than the sum of its proper divisors (1150338564384).

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

616722227616 is a wasteful number, since it uses less digits than its factorization.

616722227616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328262 (or 328254 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The spelling of 616722227616 in words is "six hundred sixteen billion, seven hundred twenty-two million, two hundred twenty-seven thousand, six hundred sixteen".