16666676005 has 48 divisors (see below), whose sum is σ = 23784937200. Its totient is φ = 11174811648.

The previous prime is 16666676003. The next prime is 16666676021. The reversal of 16666676005 is 50067666661.

It is a happy number.

16666676005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2113148961 + 14553527044 = 45969^2 + 120638^2 .

It is not a de Polignac number, because 16666676005 - 2¹ = 16666676003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 16666676005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16666676003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4114221 + ... + 4118269.

It is an arithmetic number, because the mean of its divisors is an integer number (495519525).

Almost surely, 2^16666676005 is an apocalyptic number.

It is an amenable number.

16666676005 is a deficient number, since it is larger than the sum of its proper divisors (7118261195).

16666676005 is a wasteful number, since it uses less digits than its factorization.

16666676005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4438 (or 4431 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 16666676005 in words is "sixteen billion, six hundred sixty-six million, six hundred seventy-six thousand, five".