664012514 has 16 divisors (see below), whose sum is σ = 1107069120. Its totient is φ = 296128560.

The previous prime is 664012499. The next prime is 664012549. The reversal of 664012514 is 415210466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283574 + ... + 285905.

It is an arithmetic number, because the mean of its divisors is an integer number (69191820).

Almost surely, 2^664012514 is an apocalyptic number.

664012514 is a deficient number, since it is larger than the sum of its proper divisors (443056606).

664012514 is a wasteful number, since it uses less digits than its factorization.

664012514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569545.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 664012514 is about 25768.4402709982. The cubic root of 664012514 is about 872.4196148742.

The spelling of 664012514 in words is "six hundred sixty-four million, twelve thousand, five hundred fourteen".