616666874320 has 320 divisors, whose sum is σ = 1746531072000. Its totient is φ = 197794621440.

The previous prime is 616666874297. The next prime is 616666874407. The reversal of 616666874320 is 23478666616.

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, 316400706 + ... + 316402654.

It is an arithmetic number, because the mean of its divisors is an integer number (5457909600).

Almost surely, 2^616666874320 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 616666874320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873265536000).

616666874320 is an abundant number, since it is smaller than the sum of its proper divisors (1129864197680).

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

616666874320 is a wasteful number, since it uses less digits than its factorization.

616666874320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346 (or 2340 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 616666874320 in words is "six hundred sixteen billion, six hundred sixty-six million, eight hundred seventy-four thousand, three hundred twenty".