616610353 has 8 divisors (see below), whose sum is σ = 624148200. Its totient is φ = 609100800.

The previous prime is 616610339. The next prime is 616610389. The reversal of 616610353 is 353016616.

It can be written as a sum of positive squares in 4 ways, for example, as 142372624 + 474237729 = 11932^2 + 21777^2 .

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 616610353 - 2²⁹ = 79739441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616610303) 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, 38551 + ... + 52147.

It is an arithmetic number, because the mean of its divisors is an integer number (78018525).

Almost surely, 2^616610353 is an apocalyptic number.

It is an amenable number.

616610353 is a deficient number, since it is larger than the sum of its proper divisors (7537847).

616610353 is a wasteful number, since it uses less digits than its factorization.

616610353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14147.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 616610353 is about 24831.6401592807. The cubic root of 616610353 is about 851.1451016338.

Adding to 616610353 its reverse (353016616), we get a palindrome (969626969).

The spelling of 616610353 in words is "six hundred sixteen million, six hundred ten thousand, three hundred fifty-three".