616413365 has 4 divisors (see below), whose sum is σ = 739696044. Its totient is φ = 493130688.

The previous prime is 616413323. The next prime is 616413367. The reversal of 616413365 is 563314616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80120401 + 536292964 = 8951^2 + 23158^2 .

It is a cyclic number.

It is not a de Polignac number, because 616413365 - 2¹⁶ = 616347829 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 (616413367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61641332 + ... + 61641341.

It is an arithmetic number, because the mean of its divisors is an integer number (184924011).

Almost surely, 2^616413365 is an apocalyptic number.

It is an amenable number.

616413365 is a deficient number, since it is larger than the sum of its proper divisors (123282679).

616413365 is a wasteful number, since it uses less digits than its factorization.

616413365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123282678.

The product of its digits is 38880, while the sum is 35.

The square root of 616413365 is about 24827.6733706564. The cubic root of 616413365 is about 851.0544537726.

The spelling of 616413365 in words is "six hundred sixteen million, four hundred thirteen thousand, three hundred sixty-five".