6529940664928 has 48 divisors (see below), whose sum is σ = 12912588089856. Its totient is φ = 3250556677120.

The previous prime is 6529940664911. The next prime is 6529940664977. The reversal of 6529940664928 is 8294660499256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65794350 + ... + 65893522.

It is an arithmetic number, because the mean of its divisors is an integer number (269012251872).

Almost surely, 2^{6529940664928} is an apocalyptic number.

It is an amenable number.

6529940664928 is a deficient number, since it is larger than the sum of its proper divisors (6382647424928).

6529940664928 is a wasteful number, since it uses less digits than its factorization.

6529940664928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108247 (or 108239 counting only the distinct ones).

The product of its (nonzero) digits is 403107840, while the sum is 70.

The spelling of 6529940664928 in words is "six trillion, five hundred twenty-nine billion, nine hundred forty million, six hundred sixty-four thousand, nine hundred twenty-eight".