19916111106228 has 24 divisors (see below), whose sum is σ = 48916764121120. Its totient is φ = 6289298244000.

The previous prime is 19916111106181. The next prime is 19916111106251. The reversal of 19916111106228 is 82260111161991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43675682023 + ... + 43675682478.

Almost surely, 2^{19916111106228} is an apocalyptic number.

It is an amenable number.

19916111106228 is an abundant number, since it is smaller than the sum of its proper divisors (29000653014892).

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

19916111106228 is a wasteful number, since it uses less digits than its factorization.

19916111106228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87351364527 (or 87351364525 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 48.

The spelling of 19916111106228 in words is "nineteen trillion, nine hundred sixteen billion, one hundred eleven million, one hundred six thousand, two hundred twenty-eight".