7718232066 has 8 divisors (see below), whose sum is σ = 15436464144. Its totient is φ = 2572744020.

The previous prime is 7718232059. The next prime is 7718232097. The reversal of 7718232066 is 6602328177.

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

7718232066 is an admirable number.

It is a super-2 number, since 2×7718232066² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643186000 + ... + 643186011.

It is an arithmetic number, because the mean of its divisors is an integer number (1929558018).

Almost surely, 2^7718232066 is an apocalyptic number.

7718232066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7718232066 is a wasteful number, since it uses less digits than its factorization.

7718232066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286372016.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 7718232066 is about 87853.4692883554. The cubic root of 7718232066 is about 1976.2381439790.

The spelling of 7718232066 in words is "seven billion, seven hundred eighteen million, two hundred thirty-two thousand, sixty-six".