655445268 has 72 divisors (see below), whose sum is σ = 1791683712. Its totient is φ = 201245952.

The previous prime is 655445239. The next prime is 655445279. The reversal of 655445268 is 862544556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17371 + ... + 40157.

It is an arithmetic number, because the mean of its divisors is an integer number (24884496).

Almost surely, 2^655445268 is an apocalyptic number.

655445268 is a gapful number since it is divisible by the number (68) 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 655445268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895841856).

655445268 is an abundant number, since it is smaller than the sum of its proper divisors (1136238444).

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

655445268 is a wasteful number, since it uses less digits than its factorization.

655445268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22861 (or 22856 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 655445268 is about 25601.6653364581. The cubic root of 655445268 is about 868.6513070571.

The spelling of 655445268 in words is "six hundred fifty-five million, four hundred forty-five thousand, two hundred sixty-eight".