2066544697 has 8 divisors (see below), whose sum is σ = 2416690496. Its totient is φ = 1730130192.

The previous prime is 2066544643. The next prime is 2066544721. The reversal of 2066544697 is 7964456602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2066544697 - 2¹⁵ = 2066511929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2066544697.

It is not an unprimeable number, because it can be changed into a prime (2066544617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3432498 + ... + 3433099.

It is an arithmetic number, because the mean of its divisors is an integer number (302086312).

Almost surely, 2^2066544697 is an apocalyptic number.

It is an amenable number.

2066544697 is a deficient number, since it is larger than the sum of its proper divisors (350145799).

2066544697 is an equidigital number, since it uses as much as digits as its factorization.

2066544697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6865647.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The square root of 2066544697 is about 45459.2641493458. The cubic root of 2066544697 is about 1273.7423861381.

The spelling of 2066544697 in words is "two billion, sixty-six million, five hundred forty-four thousand, six hundred ninety-seven".