816245611 has 8 divisors (see below), whose sum is σ = 826007760. Its totient is φ = 806496768.

The previous prime is 816245581. The next prime is 816245623. The reversal of 816245611 is 116542618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 816245611 - 2⁵ = 816245579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816243611) 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 7 ways as a sum of consecutive naturals, for example, 177240 + ... + 181786.

It is an arithmetic number, because the mean of its divisors is an integer number (103250970).

Almost surely, 2^816245611 is an apocalyptic number.

816245611 is a deficient number, since it is larger than the sum of its proper divisors (9762149).

816245611 is a wasteful number, since it uses less digits than its factorization.

816245611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6653.

The product of its digits is 11520, while the sum is 34.

The square root of 816245611 is about 28570.0124431194. The cubic root of 816245611 is about 934.5594924205.

The spelling of 816245611 in words is "eight hundred sixteen million, two hundred forty-five thousand, six hundred eleven".