616836505 has 16 divisors (see below), whose sum is σ = 768740544. Its totient is φ = 474788160.

The previous prime is 616836497. The next prime is 616836527. The reversal of 616836505 is 505638616.

It is not a de Polignac number, because 616836505 - 2³ = 616836497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7006 + ... + 35815.

It is an arithmetic number, because the mean of its divisors is an integer number (48046284).

Almost surely, 2^616836505 is an apocalyptic number.

It is an amenable number.

616836505 is a deficient number, since it is larger than the sum of its proper divisors (151904039).

616836505 is a wasteful number, since it uses less digits than its factorization.

616836505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42936.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 616836505 is about 24836.1934482722. The cubic root of 616836505 is about 851.2491460751.

The spelling of 616836505 in words is "six hundred sixteen million, eight hundred thirty-six thousand, five hundred five".