2066697023 has 4 divisors (see below), whose sum is σ = 2066885520. Its totient is φ = 2066508528.

The previous prime is 2066696971. The next prime is 2066697037. The reversal of 2066697023 is 3207966602.

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

It is a cyclic number.

It is not a de Polignac number, because 2066697023 - 2⁸ = 2066696767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066697043) 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, 76715 + ... + 100092.

It is an arithmetic number, because the mean of its divisors is an integer number (516721380).

Almost surely, 2^2066697023 is an apocalyptic number.

2066697023 is a deficient number, since it is larger than the sum of its proper divisors (188497).

2066697023 is a wasteful number, since it uses less digits than its factorization.

2066697023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188496.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 2066697023 is about 45460.9395305464. The cubic root of 2066697023 is about 1273.7736814231.

The spelling of 2066697023 in words is "two billion, sixty-six million, six hundred ninety-seven thousand, twenty-three".