6556505340 has 96 divisors (see below), whose sum is σ = 22888180224. Its totient is φ = 1362389760.

The previous prime is 6556505309. The next prime is 6556505353. The reversal of 6556505340 is 435056556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704959 + ... + 714198.

It is an arithmetic number, because the mean of its divisors is an integer number (238418544).

Almost surely, 2^6556505340 is an apocalyptic number.

6556505340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6556505340 is an abundant number, since it is smaller than the sum of its proper divisors (16331674884).

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

6556505340 is a wasteful number, since it uses less digits than its factorization.

6556505340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419187 (or 1419185 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

The square root of 6556505340 is about 80972.2504318609. The cubic root of 6556505340 is about 1871.6478501982.

The spelling of 6556505340 in words is "six billion, five hundred fifty-six million, five hundred five thousand, three hundred forty".