228866806620 has 36 divisors (see below), whose sum is σ = 694229313960. Its totient is φ = 61031148384.

The previous prime is 228866806607. The next prime is 228866806673. The reversal of 228866806620 is 26608668822.

228866806620 is a `hidden beast` number, since 2 + 2 + 8 + 8 + 6 + 6 + 8 + 0 + 6 + 620 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 635740950 + ... + 635741309.

It is an arithmetic number, because the mean of its divisors is an integer number (19284147610).

Almost surely, 2^228866806620 is an apocalyptic number.

228866806620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228866806620 is an abundant number, since it is smaller than the sum of its proper divisors (465362507340).

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

228866806620 is a wasteful number, since it uses less digits than its factorization.

228866806620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271482274 (or 1271482269 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 228866806620 in words is "two hundred twenty-eight billion, eight hundred sixty-six million, eight hundred six thousand, six hundred twenty".