2066129065 has 64 divisors (see below), whose sum is σ = 3504291840. Its totient is φ = 1126275840.

The previous prime is 2066129047. The next prime is 2066129069. The reversal of 2066129065 is 5609216602.

It is not a de Polignac number, because 2066129065 - 2⁵ = 2066129033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2066129069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84232 + ... + 105958.

It is an arithmetic number, because the mean of its divisors is an integer number (54754560).

Almost surely, 2^2066129065 is an apocalyptic number.

It is an amenable number.

2066129065 is a deficient number, since it is larger than the sum of its proper divisors (1438162775).

2066129065 is a wasteful number, since it uses less digits than its factorization.

2066129065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21782.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 2066129065 is about 45454.6924420351. The cubic root of 2066129065 is about 1273.6569869704.

It can be divided in two parts, 2066 and 129065, that added together give a palindrome (131131).

The spelling of 2066129065 in words is "two billion, sixty-six million, one hundred twenty-nine thousand, sixty-five".