6649559466 has 64 divisors (see below), whose sum is σ = 15798412800. Its totient is φ = 1843128000.

The previous prime is 6649559383. The next prime is 6649559491.

6649559466 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55060 + ... + 127791.

It is an arithmetic number, because the mean of its divisors is an integer number (246850200).

Almost surely, 2^6649559466 is an apocalyptic number.

6649559466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6649559466 is an abundant number, since it is smaller than the sum of its proper divisors (9148853334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6649559466 is a wasteful number, since it uses less digits than its factorization.

6649559466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182915.

The product of its digits is 41990400, while the sum is 60.

The square root of 6649559466 is about 81544.8310195073. The cubic root of 6649559466 is about 1880.4608295769.

The spelling of 6649559466 in words is "six billion, six hundred forty-nine million, five hundred fifty-nine thousand, four hundred sixty-six".