616618080960 has 224 divisors, whose sum is σ = 2255063531520. Its totient is φ = 139831308288.

The previous prime is 616618080959. The next prime is 616618080979. The reversal of 616618080960 is 69080816616.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×616618080960² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492186 + ... + 1214694.

Almost surely, 2^616618080960 is an apocalyptic number.

616618080960 is a gapful number since it is divisible by the number (60) 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 616618080960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1127531765760).

616618080960 is an abundant number, since it is smaller than the sum of its proper divisors (1638445450560).

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

616618080960 is a wasteful number, since it uses less digits than its factorization.

616618080960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722663 (or 722653 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 616618080960 in words is "six hundred sixteen billion, six hundred eighteen million, eighty thousand, nine hundred sixty".