228199837823666 has 16 divisors (see below), whose sum is σ = 365525880387840. Its totient is φ = 106611715111440.

The previous prime is 228199837823653. The next prime is 228199837823681. The reversal of 228199837823666 is 666328738991822.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63459352436 + ... + 63459356031.

It is an arithmetic number, because the mean of its divisors is an integer number (22845367524240).

Almost surely, 2^{228199837823666} is an apocalyptic number.

228199837823666 is a deficient number, since it is larger than the sum of its proper divisors (137326042564174).

228199837823666 is a wasteful number, since it uses less digits than its factorization.

228199837823666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126918708529.

The product of its digits is 4514807808, while the sum is 80.

The spelling of 228199837823666 in words is "two hundred twenty-eight trillion, one hundred ninety-nine billion, eight hundred thirty-seven million, eight hundred twenty-three thousand, six hundred sixty-six".