16606516444 has 48 divisors (see below), whose sum is σ = 33512693760. Its totient is φ = 7052996160.

The previous prime is 16606516429. The next prime is 16606516463. The reversal of 16606516444 is 44461560661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16606516444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3941499 + ... + 3945709.

It is an arithmetic number, because the mean of its divisors is an integer number (698181120).

Almost surely, 2^16606516444 is an apocalyptic number.

16606516444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16606516444 is an abundant number, since it is smaller than the sum of its proper divisors (16906177316).

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

16606516444 is a wasteful number, since it uses less digits than its factorization.

16606516444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458 (or 5456 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 16606516444 in words is "sixteen billion, six hundred six million, five hundred sixteen thousand, four hundred forty-four".