5351664666 has 8 divisors (see below), whose sum is σ = 10703329344. Its totient is φ = 1783888220.

The previous prime is 5351664641. The next prime is 5351664671. The reversal of 5351664666 is 6664661535.

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

5351664666 is an admirable number.

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, 445972050 + ... + 445972061.

It is an arithmetic number, because the mean of its divisors is an integer number (1337916168).

Almost surely, 2^5351664666 is an apocalyptic number.

5351664666 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.

5351664666 is a wasteful number, since it uses less digits than its factorization.

5351664666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891944116.

The product of its digits is 2332800, while the sum is 48.

The square root of 5351664666 is about 73155.0727291006. The cubic root of 5351664666 is about 1749.1603771992.

The spelling of 5351664666 in words is "five billion, three hundred fifty-one million, six hundred sixty-four thousand, six hundred sixty-six".