16211564226 has 48 divisors (see below), whose sum is σ = 41265806400. Its totient is φ = 4534702560.

The previous prime is 16211564221. The next prime is 16211564227. The reversal of 16211564226 is 62246511261.

16211564226 is a `hidden beast` number, since 1 + 6 + 2 + 1 + 1 + 5 + 642 + 2 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (16211564221) 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, 3146526 + ... + 3151673.

It is an arithmetic number, because the mean of its divisors is an integer number (859704300).

Almost surely, 2^16211564226 is an apocalyptic number.

16211564226 is an abundant number, since it is smaller than the sum of its proper divisors (25054242174).

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

16211564226 is a wasteful number, since it uses less digits than its factorization.

16211564226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298231 (or 6298228 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 16211564226 in words is "sixteen billion, two hundred eleven million, five hundred sixty-four thousand, two hundred twenty-six".