228446404505064 has 40 divisors (see below), whose sum is σ = 639861457064610. Its totient is φ = 76148801501472.

The previous prime is 228446404505057. The next prime is 228446404505071. The reversal of 228446404505064 is 460505404644822.

228446404505064 is a `hidden beast` number, since 2 + 2 + 8 + 4 + 46 + 40 + 4 + 50 + 506 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (228446404505057) and next prime (228446404505071).

It can be written as a sum of positive squares in only one way, i.e., 227377748902500 + 1068655602564 = 15079050^2 + 1033758^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 228446404505064.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 176270373199 + ... + 176270374494.

Almost surely, 2^{228446404505064} is an apocalyptic number.

228446404505064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228446404505064 is an abundant number, since it is smaller than the sum of its proper divisors (411415052559546).

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

228446404505064 is a wasteful number, since it uses less digits than its factorization.

228446404505064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352540747711 (or 352540747698 counting only the distinct ones).

The product of its (nonzero) digits is 29491200, while the sum is 54.

The spelling of 228446404505064 in words is "two hundred twenty-eight trillion, four hundred forty-six billion, four hundred four million, five hundred five thousand, sixty-four".