2065670067 has 4 divisors (see below), whose sum is σ = 2754226760. Its totient is φ = 1377113376.

The previous prime is 2065670041. The next prime is 2065670081. The reversal of 2065670067 is 7600765602.

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

It is not a de Polignac number, because 2065670067 - 2⁷ = 2065669939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2065678067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344278342 + ... + 344278347.

It is an arithmetic number, because the mean of its divisors is an integer number (688556690).

Almost surely, 2^2065670067 is an apocalyptic number.

2065670067 is a deficient number, since it is larger than the sum of its proper divisors (688556693).

2065670067 is an equidigital number, since it uses as much as digits as its factorization.

2065670067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688556692.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 2065670067 is about 45449.6431999196. The cubic root of 2065670067 is about 1273.5626641591.

The spelling of 2065670067 in words is "two billion, sixty-five million, six hundred seventy thousand, sixty-seven".