2106006818 has 8 divisors (see below), whose sum is σ = 3344834412. Its totient is φ = 991062016.

The previous prime is 2106006787. The next prime is 2106006821. The reversal of 2106006818 is 8186006012.

It can be written as a sum of positive squares in 2 ways, for example, as 2073254089 + 32752729 = 45533^2 + 5723^2 .

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

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, 30970655 + ... + 30970722.

Almost surely, 2^2106006818 is an apocalyptic number.

2106006818 is a deficient number, since it is larger than the sum of its proper divisors (1238827594).

2106006818 is a wasteful number, since it uses less digits than its factorization.

2106006818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61941396.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2106006818 is about 45891.2499067088. The cubic root of 2106006818 is about 1281.7989877456.

The spelling of 2106006818 in words is "two billion, one hundred six million, six thousand, eight hundred eighteen".