616420335253 has 8 divisors (see below), whose sum is σ = 619150381400. Its totient is φ = 613690622208.

The previous prime is 616420335221. The next prime is 616420335277. The reversal of 616420335253 is 352533024616.

It can be written as a sum of positive squares in 4 ways, for example, as 146473067524 + 469947267729 = 382718^2 + 685527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616420335253 - 2⁵ = 616420335221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616420336253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4086625 + ... + 4234777.

It is an arithmetic number, because the mean of its divisors is an integer number (77393797675).

Almost surely, 2^616420335253 is an apocalyptic number.

It is an amenable number.

616420335253 is a deficient number, since it is larger than the sum of its proper divisors (2730046147).

616420335253 is a wasteful number, since it uses less digits than its factorization.

616420335253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166551.

The product of its (nonzero) digits is 388800, while the sum is 40.

Adding to 616420335253 its reverse (352533024616), we get a palindrome (968953359869).

The spelling of 616420335253 in words is "six hundred sixteen billion, four hundred twenty million, three hundred thirty-five thousand, two hundred fifty-three".