2001669107 has 2 divisors, whose sum is σ = 2001669108. Its totient is φ = 2001669106.

The previous prime is 2001669091. The next prime is 2001669149. The reversal of 2001669107 is 7019661002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001669107 - 2⁴ = 2001669091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001669167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000834553 + 1000834554.

It is an arithmetic number, because the mean of its divisors is an integer number (1000834554).

Almost surely, 2^2001669107 is an apocalyptic number.

2001669107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001669107 is an equidigital number, since it uses as much as digits as its factorization.

2001669107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 2001669107 is about 44740.0168417492. The cubic root of 2001669107 is about 1260.2714429463.

The spelling of 2001669107 in words is "two billion, one million, six hundred sixty-nine thousand, one hundred seven".