616420335252 has 24 divisors (see below), whose sum is σ = 1438576878816. Its totient is φ = 205435907488.

The previous prime is 616420335221. The next prime is 616420335277. The reversal of 616420335252 is 252533024616.

616420335252 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 616420335252.

It is a congruent number.

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, 4623738 + ... + 4755185.

It is an arithmetic number, because the mean of its divisors is an integer number (59940703284).

Almost surely, 2^616420335252 is an apocalyptic number.

It is an amenable number.

616420335252 is an abundant number, since it is smaller than the sum of its proper divisors (822156543564).

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

616420335252 is a wasteful number, since it uses less digits than its factorization.

616420335252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9384407 (or 9384405 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 616420335252 its reverse (252533024616), we get a palindrome (868953359868).

The spelling of 616420335252 in words is "six hundred sixteen billion, four hundred twenty million, three hundred thirty-five thousand, two hundred fifty-two".