64480666 has 8 divisors (see below), whose sum is σ = 98164800. Its totient is φ = 31759068.

The previous prime is 64480649. The next prime is 64480697. The reversal of 64480666 is 66608446.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 240466 + ... + 240733.

It is an arithmetic number, because the mean of its divisors is an integer number (12270600).

Almost surely, 2^64480666 is an apocalyptic number.

64480666 is a deficient number, since it is larger than the sum of its proper divisors (33684134).

64480666 is a wasteful number, since it uses less digits than its factorization.

64480666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481268.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 64480666 is about 8029.9854296256. The cubic root of 64480666 is about 400.9988909657.

The spelling of 64480666 in words is "sixty-four million, four hundred eighty thousand, six hundred sixty-six".