16606606623444 has 96 divisors (see below), whose sum is σ = 43282895644800. Its totient is φ = 5506171430400.

The previous prime is 16606606623437. The next prime is 16606606623449. The reversal of 16606606623444 is 44432660660661.

16606606623444 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 6 + 6 + 0 + 6 + 623 + 4 + 4 + 4 = 666.

It is a super-2 number, since 2×16606606623444² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16606606623449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26882844 + ... + 27493644.

It is an arithmetic number, because the mean of its divisors is an integer number (450863496300).

Almost surely, 2^{16606606623444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16606606623444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21641447822400).

16606606623444 is an abundant number, since it is smaller than the sum of its proper divisors (26676289021356).

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

16606606623444 is a wasteful number, since it uses less digits than its factorization.

16606606623444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612150 (or 612142 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 54.

The spelling of 16606606623444 in words is "sixteen trillion, six hundred six billion, six hundred six million, six hundred twenty-three thousand, four hundred forty-four".