16716223666044 has 216 divisors, whose sum is σ = 50602700126160. Its totient is φ = 4635882865152.

The previous prime is 16716223666033. The next prime is 16716223666049. The reversal of 16716223666044 is 44066632261761.

It is a happy number.

It is a super-3 number, since 3×16716223666044³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16716223666049) 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 71 ways as a sum of consecutive naturals, for example, 27041664 + ... + 27652920.

Almost surely, 2^{16716223666044} is an apocalyptic number.

16716223666044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16716223666044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25301350063080).

16716223666044 is an abundant number, since it is smaller than the sum of its proper divisors (33886476460116).

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

16716223666044 is a wasteful number, since it uses less digits than its factorization.

16716223666044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611737 (or 611725 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 16716223666044 in words is "sixteen trillion, seven hundred sixteen billion, two hundred twenty-three million, six hundred sixty-six thousand, forty-four".