616420335232 has 64 divisors (see below), whose sum is σ = 1325119340160. Its totient is φ = 283935697920.

The previous prime is 616420335221. The next prime is 616420335277. The reversal of 616420335232 is 232533024616.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 616420335191 and 616420335200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468757 + ... + 1205227.

It is an arithmetic number, because the mean of its divisors is an integer number (20704989690).

Almost surely, 2^616420335232 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 616420335232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662559670080).

616420335232 is an abundant number, since it is smaller than the sum of its proper divisors (708699004928).

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

616420335232 is a wasteful number, since it uses less digits than its factorization.

616420335232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737001 (or 736989 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 616420335232 its reverse (232533024616), we get a palindrome (848953359848).

The spelling of 616420335232 in words is "six hundred sixteen billion, four hundred twenty million, three hundred thirty-five thousand, two hundred thirty-two".