16650071 has 2 divisors, whose sum is σ = 16650072. Its totient is φ = 16650070.

The previous prime is 16650047. The next prime is 16650083. The reversal of 16650071 is 17005661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16650071 - 2¹⁰ = 16649047 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16650071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16650001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8325035 + 8325036.

It is an arithmetic number, because the mean of its divisors is an integer number (8325036).

Almost surely, 2^16650071 is an apocalyptic number.

16650071 is a deficient number, since it is larger than the sum of its proper divisors (1).

16650071 is an equidigital number, since it uses as much as digits as its factorization.

16650071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 16650071 is about 4080.4498526511. The cubic root of 16650071 is about 255.3516665357.

The spelling of 16650071 in words is "sixteen million, six hundred fifty thousand, seventy-one".