616388614380 has 2016 divisors, whose sum is σ = 2672742804480. Its totient is φ = 116397388800.

The previous prime is 616388614349. The next prime is 616388614381. The reversal of 616388614380 is 83416883616.

616388614380 is a `hidden beast` number, since 6 + 16 + 3 + 8 + 8 + 614 + 3 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616388614381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 671 ways as a sum of consecutive naturals, for example, 8681529745 + ... + 8681529815.

It is an arithmetic number, because the mean of its divisors is an integer number (1325765280).

Almost surely, 2^616388614380 is an apocalyptic number.

616388614380 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 616388614380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1336371402240).

616388614380 is an abundant number, since it is smaller than the sum of its proper divisors (2056354190100).

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

616388614380 is a wasteful number, since it uses less digits than its factorization.

616388614380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 616388614380 in words is "six hundred sixteen billion, three hundred eighty-eight million, six hundred fourteen thousand, three hundred eighty".