616775105 has 4 divisors (see below), whose sum is σ = 740130132. Its totient is φ = 493420080.

The previous prime is 616775077. The next prime is 616775143. The reversal of 616775105 is 501577616.

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 462121009 + 154654096 = 21497^2 + 12436^2 .

It is not a de Polignac number, because 616775105 - 2²⁴ = 599997889 is a prime.

It is a super-2 number, since 2×616775105² = 760823060295522050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61677506 + ... + 61677515.

It is an arithmetic number, because the mean of its divisors is an integer number (185032533).

Almost surely, 2^616775105 is an apocalyptic number.

It is an amenable number.

616775105 is a deficient number, since it is larger than the sum of its proper divisors (123355027).

616775105 is a wasteful number, since it uses less digits than its factorization.

616775105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123355026.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 616775105 is about 24834.9573182641. The cubic root of 616775105 is about 851.2209006479.

The spelling of 616775105 in words is "six hundred sixteen million, seven hundred seventy-five thousand, one hundred five".