227545222146640 has 40 divisors (see below), whose sum is σ = 529047834974568. Its totient is φ = 91017195356160.

The previous prime is 227545222146629. The next prime is 227545222146647. The reversal of 227545222146640 is 46641222545722.

It can be written as a sum of positive squares in 4 ways, for example, as 26992721484304 + 200552500662336 = 5195452^2 + 14161656^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227545222146647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5730577 + ... + 22089136.

Almost surely, 2^{227545222146640} is an apocalyptic number.

227545222146640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227545222146640 is an abundant number, since it is smaller than the sum of its proper divisors (301502612827928).

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

227545222146640 is a wasteful number, since it uses less digits than its factorization.

227545222146640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27921967 (or 27921961 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 52.

The spelling of 227545222146640 in words is "two hundred twenty-seven trillion, five hundred forty-five billion, two hundred twenty-two million, one hundred forty-six thousand, six hundred forty".