501210664 has 64 divisors (see below), whose sum is σ = 1007510400. Its totient is φ = 233232384.

The previous prime is 501210649. The next prime is 501210673. The reversal of 501210664 is 466012105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1487104 + ... + 1487440.

It is an arithmetic number, because the mean of its divisors is an integer number (15742350).

Almost surely, 2^501210664 is an apocalyptic number.

It is an amenable number.

501210664 is an abundant number, since it is smaller than the sum of its proper divisors (506299736).

501210664 is a wasteful number, since it uses less digits than its factorization.

501210664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 501210664 is about 22387.7346777203. The cubic root of 501210664 is about 794.3406127441.

Adding to 501210664 its reverse (466012105), we get a palindrome (967222769).

The spelling of 501210664 in words is "five hundred one million, two hundred ten thousand, six hundred sixty-four".