2005594656 has 72 divisors (see below), whose sum is σ = 5700859920. Its totient is φ = 617101056.

The previous prime is 2005594651. The next prime is 2005594739. The reversal of 2005594656 is 6564955002.

It is not an unprimeable number, because it can be changed into a prime (2005594651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45586 + ... + 78033.

It is an arithmetic number, because the mean of its divisors is an integer number (79178610).

Almost surely, 2^2005594656 is an apocalyptic number.

2005594656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2005594656 is an abundant number, since it is smaller than the sum of its proper divisors (3695265264).

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

2005594656 is a wasteful number, since it uses less digits than its factorization.

2005594656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123658 (or 123637 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 2005594656 is about 44783.8660233794. The cubic root of 2005594656 is about 1261.0947603001.

The spelling of 2005594656 in words is "two billion, five million, five hundred ninety-four thousand, six hundred fifty-six".