2256645600 has 216 divisors, whose sum is σ = 8681209992. Its totient is φ = 547046400.

The previous prime is 2256645593. The next prime is 2256645631. The reversal of 2256645600 is 65466522.

2256645600 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 6 + 45 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 64954 + ... + 93446.

It is an arithmetic number, because the mean of its divisors is an integer number (40190787).

Almost surely, 2^2256645600 is an apocalyptic number.

2256645600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2256645600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4340604996).

2256645600 is an abundant number, since it is smaller than the sum of its proper divisors (6424564392).

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

2256645600 is a wasteful number, since it uses less digits than its factorization.

2256645600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28530 (or 28514 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2256645600 is about 47504.1640280092. The cubic root of 2256645600 is about 1311.6595326648.

The spelling of 2256645600 in words is "two billion, two hundred fifty-six million, six hundred forty-five thousand, six hundred".