2143066765 has 8 divisors (see below), whose sum is σ = 2939063040. Its totient is φ = 1469531472.

The previous prime is 2143066763. The next prime is 2143066781. The reversal of 2143066765 is 5676603412.

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

It is a cyclic number.

It is not a de Polignac number, because 2143066765 - 2¹ = 2143066763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143066763) 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, 30615205 + ... + 30615274.

It is an arithmetic number, because the mean of its divisors is an integer number (367382880).

Almost surely, 2^2143066765 is an apocalyptic number.

It is an amenable number.

2143066765 is a deficient number, since it is larger than the sum of its proper divisors (795996275).

2143066765 is an equidigital number, since it uses as much as digits as its factorization.

2143066765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61230491.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 2143066765 is about 46293.2691111786. The cubic root of 2143066765 is about 1289.2740271520.

The spelling of 2143066765 in words is "two billion, one hundred forty-three million, sixty-six thousand, seven hundred sixty-five".