228007161208836 has 81 divisors (see below), whose sum is σ = 577080395246901. Its totient is φ = 75906381867264.

The previous prime is 228007161208831. The next prime is 228007161208859. The reversal of 228007161208836 is 638802161700822.

The square root of 228007161208836 is 15099906.

It is a perfect power (a square), and thus also a powerful number.

228007161208836 is a `hidden beast` number, since 2 + 280 + 0 + 71 + 61 + 208 + 8 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 219489262128900 + 8517899079936 = 14815170^2 + 2918544^2 .

It is not an unprimeable number, because it can be changed into a prime (228007161208831) 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 26 ways as a sum of consecutive naturals, for example, 134358962740 + ... + 134358964436.

Almost surely, 2^{228007161208836} is an apocalyptic number.

228007161208836 is the 15099906-th square number.

It is an amenable number.

228007161208836 is an abundant number, since it is smaller than the sum of its proper divisors (349073234038065).

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

228007161208836 is an frugal number, since it uses more digits than its factorization.

228007161208836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6370 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 228007161208836 in words is "two hundred twenty-eight trillion, seven billion, one hundred sixty-one million, two hundred eight thousand, eight hundred thirty-six".