228045585566649 has 4 divisors (see below), whose sum is σ = 304060780755536. Its totient is φ = 152030390377764.

The previous prime is 228045585566629. The next prime is 228045585566657. The reversal of 228045585566649 is 946665585540822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 228045585566649 - 2³⁹ = 227495829752761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228045585566629) 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 3 ways as a sum of consecutive naturals, for example, 38007597594439 + ... + 38007597594444.

It is an arithmetic number, because the mean of its divisors is an integer number (76015195188884).

Almost surely, 2^{228045585566649} is an apocalyptic number.

It is an amenable number.

228045585566649 is a deficient number, since it is larger than the sum of its proper divisors (76015195188887).

228045585566649 is an equidigital number, since it uses as much as digits as its factorization.

228045585566649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76015195188886.

The product of its (nonzero) digits is 4976640000, while the sum is 75.

The spelling of 228045585566649 in words is "two hundred twenty-eight trillion, forty-five billion, five hundred eighty-five million, five hundred sixty-six thousand, six hundred forty-nine".