616722661115772 has 192 divisors, whose sum is σ = 1550171664384000. Its totient is φ = 190329222631680.

The previous prime is 616722661115767. The next prime is 616722661115801. The reversal of 616722661115772 is 277511166227616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14548412697 + ... + 14548455087.

It is an arithmetic number, because the mean of its divisors is an integer number (8073810752000).

Almost surely, 2^{616722661115772} 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 616722661115772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775085832192000).

616722661115772 is an abundant number, since it is smaller than the sum of its proper divisors (933449003268228).

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

616722661115772 is a wasteful number, since it uses less digits than its factorization.

616722661115772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49816 (or 49814 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 60.

The spelling of 616722661115772 in words is "six hundred sixteen trillion, seven hundred twenty-two billion, six hundred sixty-one million, one hundred fifteen thousand, seven hundred seventy-two".