2218506670 has 16 divisors (see below), whose sum is σ = 4131012960. Its totient is φ = 856802464.

The previous prime is 2218506617. The next prime is 2218506673. The reversal of 2218506670 is 766058122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218506673) 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, 3824722 + ... + 3825301.

It is an arithmetic number, because the mean of its divisors is an integer number (258188310).

Almost surely, 2^2218506670 is an apocalyptic number.

2218506670 is a deficient number, since it is larger than the sum of its proper divisors (1912506290).

2218506670 is a wasteful number, since it uses less digits than its factorization.

2218506670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650059.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 2218506670 is about 47101.0262096273. The cubic root of 2218506670 is about 1304.2281799092.

The spelling of 2218506670 in words is "two billion, two hundred eighteen million, five hundred six thousand, six hundred seventy".