227255242640 has 40 divisors (see below), whose sum is σ = 529840284480. Its totient is φ = 90648876416.

The previous prime is 227255242603. The next prime is 227255242717. The reversal of 227255242640 is 46242552722.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3927674 + ... + 3985113.

It is an arithmetic number, because the mean of its divisors is an integer number (13246007112).

Almost surely, 2^227255242640 is an apocalyptic number.

227255242640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227255242640 is an abundant number, since it is smaller than the sum of its proper divisors (302585041840).

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

227255242640 is a wasteful number, since it uses less digits than its factorization.

227255242640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913159 (or 7913153 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 41.

The spelling of 227255242640 in words is "two hundred twenty-seven billion, two hundred fifty-five million, two hundred forty-two thousand, six hundred forty".