16504646264 has 16 divisors (see below), whose sum is σ = 31944477120. Its totient is φ = 7986119040.

The previous prime is 16504646261. The next prime is 16504646273. The reversal of 16504646264 is 46264640561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16504646261) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33275249 + ... + 33275744.

It is an arithmetic number, because the mean of its divisors is an integer number (1996529820).

Almost surely, 2^16504646264 is an apocalyptic number.

It is an amenable number.

16504646264 is a deficient number, since it is larger than the sum of its proper divisors (15439830856).

16504646264 is a wasteful number, since it uses less digits than its factorization.

16504646264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66551030 (or 66551026 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 16504646264 in words is "sixteen billion, five hundred four million, six hundred forty-six thousand, two hundred sixty-four".