227040491646 has 128 divisors (see below), whose sum is σ = 541839974400. Its totient is φ = 70214376960.

The previous prime is 227040491641. The next prime is 227040491669. The reversal of 227040491646 is 646194040722.

227040491646 is a `hidden beast` number, since 227 + 0 + 404 + 9 + 16 + 4 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227040491641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53156491 + ... + 53160761.

It is an arithmetic number, because the mean of its divisors is an integer number (4233124800).

Almost surely, 2^227040491646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227040491646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270919987200).

227040491646 is an abundant number, since it is smaller than the sum of its proper divisors (314799482754).

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

227040491646 is a wasteful number, since it uses less digits than its factorization.

227040491646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111 (or 5105 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 227040491646 in words is "two hundred twenty-seven billion, forty million, four hundred ninety-one thousand, six hundred forty-six".