228286045566 has 48 divisors (see below), whose sum is σ = 532774195200. Its totient is φ = 70438888080.

The previous prime is 228286045553. The next prime is 228286045567. The reversal of 228286045566 is 665540682822.

228286045566 is a `hidden beast` number, since 2 + 2 + 8 + 2 + 86 + 0 + 4 + 556 + 6 = 666.

It is a super-2 number, since 2×228286045566² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228286045567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8880966 + ... + 8906633.

It is an arithmetic number, because the mean of its divisors is an integer number (11099462400).

Almost surely, 2^228286045566 is an apocalyptic number.

228286045566 is an abundant number, since it is smaller than the sum of its proper divisors (304488149634).

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

228286045566 is a wasteful number, since it uses less digits than its factorization.

228286045566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17787661 (or 17787658 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 54.

The spelling of 228286045566 in words is "two hundred twenty-eight billion, two hundred eighty-six million, forty-five thousand, five hundred sixty-six".