616021120 has 256 divisors, whose sum is σ = 1776660480. Its totient is φ = 201277440.

The previous prime is 616021117. The next prime is 616021123. The reversal of 616021120 is 21120616.

It is an interprime number because it is at equal distance from previous prime (616021117) and next prime (616021123).

It is not an unprimeable number, because it can be changed into a prime (616021123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4850497 + ... + 4850623.

It is an arithmetic number, because the mean of its divisors is an integer number (6940080).

Almost surely, 2^616021120 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 616021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888330240).

616021120 is an abundant number, since it is smaller than the sum of its proper divisors (1160639360).

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

616021120 is a wasteful number, since it uses less digits than its factorization.

616021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 616021120 is about 24819.7727628599. The cubic root of 616021120 is about 850.8738970738.

Adding to 616021120 its reverse (21120616), we get a palindrome (637141736).

The spelling of 616021120 in words is "six hundred sixteen million, twenty-one thousand, one hundred twenty".