2066523611 has 4 divisors (see below), whose sum is σ = 2066671824. Its totient is φ = 2066375400.

The previous prime is 2066523607. The next prime is 2066523623. The reversal of 2066523611 is 1163256602.

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 2066523611 - 2² = 2066523607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066523601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50735 + ... + 81896.

It is an arithmetic number, because the mean of its divisors is an integer number (516667956).

Almost surely, 2^2066523611 is an apocalyptic number.

2066523611 is a deficient number, since it is larger than the sum of its proper divisors (148213).

2066523611 is a wasteful number, since it uses less digits than its factorization.

2066523611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148212.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2066523611 is about 45459.0322268303. The cubic root of 2066523611 is about 1273.7380539109.

The spelling of 2066523611 in words is "two billion, sixty-six million, five hundred twenty-three thousand, six hundred eleven".