616341505 has 16 divisors (see below), whose sum is σ = 811535760. Its totient is φ = 446554368.

The previous prime is 616341497. The next prime is 616341521. The reversal of 616341505 is 505143616.

It can be written as a sum of positive squares in 8 ways, for example, as 1648656 + 614692849 = 1284^2 + 24793^2 .

It is not a de Polignac number, because 616341505 - 2³ = 616341497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86010 + ... + 92899.

It is an arithmetic number, because the mean of its divisors is an integer number (50720985).

Almost surely, 2^616341505 is an apocalyptic number.

616341505 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

616341505 is a deficient number, since it is larger than the sum of its proper divisors (195194255).

616341505 is a wasteful number, since it uses less digits than its factorization.

616341505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178980.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 616341505 is about 24826.2261530020. The cubic root of 616341505 is about 851.0213811879.

The spelling of 616341505 in words is "six hundred sixteen million, three hundred forty-one thousand, five hundred five".