2001167066 has 4 divisors (see below), whose sum is σ = 3001750602. Its totient is φ = 1000583532.

The previous prime is 2001167017. The next prime is 2001167107. The reversal of 2001167066 is 6607611002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1701150025 + 300017041 = 41245^2 + 17321^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500291765 + ... + 500291768.

Almost surely, 2^2001167066 is an apocalyptic number.

2001167066 is a deficient number, since it is larger than the sum of its proper divisors (1000583536).

2001167066 is a wasteful number, since it uses less digits than its factorization.

2001167066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000583535.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2001167066 is about 44734.4058415891. The cubic root of 2001167066 is about 1260.1660707451.

Adding to 2001167066 its reverse (6607611002), we get a palindrome (8608778068).

The spelling of 2001167066 in words is "two billion, one million, one hundred sixty-seven thousand, sixty-six".