2016666629 has 2 divisors, whose sum is σ = 2016666630. Its totient is φ = 2016666628.

The previous prime is 2016666623. The next prime is 2016666689. The reversal of 2016666629 is 9266666102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1554330625 + 462336004 = 39425^2 + 21502^2 .

It is a cyclic number.

It is not a de Polignac number, because 2016666629 - 2⁸ = 2016666373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2016666629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2016666623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008333314 + 1008333315.

It is an arithmetic number, because the mean of its divisors is an integer number (1008333315).

Almost surely, 2^2016666629 is an apocalyptic number.

It is an amenable number.

2016666629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016666629 is an equidigital number, since it uses as much as digits as its factorization.

2016666629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 2016666629 is about 44907.3115316426. The cubic root of 2016666629 is about 1263.4111458691.

The spelling of 2016666629 in words is "two billion, sixteen million, six hundred sixty-six thousand, six hundred twenty-nine".