2066897129 has 4 divisors (see below), whose sum is σ = 2254796880. Its totient is φ = 1878997380.

The previous prime is 2066897089. The next prime is 2066897153. The reversal of 2066897129 is 9217986602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2066897129 - 2¹² = 2066893033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066897029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93949859 + ... + 93949880.

It is an arithmetic number, because the mean of its divisors is an integer number (563699220).

Almost surely, 2^2066897129 is an apocalyptic number.

It is an amenable number.

2066897129 is a deficient number, since it is larger than the sum of its proper divisors (187899751).

2066897129 is a wasteful number, since it uses less digits than its factorization.

2066897129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187899750.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 2066897129 is about 45463.1403336813. The cubic root of 2066897129 is about 1273.8147907435.

The spelling of 2066897129 in words is "two billion, sixty-six million, eight hundred ninety-seven thousand, one hundred twenty-nine".