6520266464 has 12 divisors (see below), whose sum is σ = 12836774664. Its totient is φ = 3260133216.

The previous prime is 6520266463. The next prime is 6520266491. The reversal of 6520266464 is 4646620256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520266463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101879132 + ... + 101879195.

It is an arithmetic number, because the mean of its divisors is an integer number (1069731222).

Almost surely, 2^6520266464 is an apocalyptic number.

It is an amenable number.

6520266464 is a deficient number, since it is larger than the sum of its proper divisors (6316508200).

6520266464 is a wasteful number, since it uses less digits than its factorization.

6520266464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203758337 (or 203758329 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The square root of 6520266464 is about 80748.1669389467. The cubic root of 6520266464 is about 1868.1931763779.

The spelling of 6520266464 in words is "six billion, five hundred twenty million, two hundred sixty-six thousand, four hundred sixty-four".