818816101 has 8 divisors (see below), whose sum is σ = 881677440. Its totient is φ = 757587648.

The previous prime is 818816099. The next prime is 818816111. The reversal of 818816101 is 101618818.

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 818816101 - 2¹ = 818816099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818816111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 407181 + ... + 409186.

It is an arithmetic number, because the mean of its divisors is an integer number (110209680).

Almost surely, 2^818816101 is an apocalyptic number.

It is an amenable number.

818816101 is a deficient number, since it is larger than the sum of its proper divisors (62861339).

818816101 is a wasteful number, since it uses less digits than its factorization.

818816101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816443.

The product of its (nonzero) digits is 3072, while the sum is 34.

The square root of 818816101 is about 28614.9628865739. The cubic root of 818816101 is about 935.5394909573.

The spelling of 818816101 in words is "eight hundred eighteen million, eight hundred sixteen thousand, one hundred one".