616541633 has 4 divisors (see below), whose sum is σ = 628174548. Its totient is φ = 604908720.

The previous prime is 616541593. The next prime is 616541663. The reversal of 616541633 is 336145616.

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 563207824 + 53333809 = 23732^2 + 7303^2 .

It is a cyclic number.

It is not a de Polignac number, because 616541633 - 2⁸ = 616541377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 616541593 and 616541602.

It is not an unprimeable number, because it can be changed into a prime (616541663) 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, 5816378 + ... + 5816483.

It is an arithmetic number, because the mean of its divisors is an integer number (157043637).

Almost surely, 2^616541633 is an apocalyptic number.

It is an amenable number.

616541633 is a deficient number, since it is larger than the sum of its proper divisors (11632915).

616541633 is a wasteful number, since it uses less digits than its factorization.

616541633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11632914.

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

The square root of 616541633 is about 24830.2564022203. The cubic root of 616541633 is about 851.1134809816.

The spelling of 616541633 in words is "six hundred sixteen million, five hundred forty-one thousand, six hundred thirty-three".