2165546141 has 8 divisors (see below), whose sum is σ = 2367588864. Its totient is φ = 1964365920.

The previous prime is 2165546039. The next prime is 2165546153. The reversal of 2165546141 is 1416455612.

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

It is not a de Polignac number, because 2165546141 - 2³⁰ = 1091804317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165546741) 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, 210365 + ... + 220418.

It is an arithmetic number, because the mean of its divisors is an integer number (295948608).

Almost surely, 2^2165546141 is an apocalyptic number.

It is an amenable number.

2165546141 is a deficient number, since it is larger than the sum of its proper divisors (202042723).

2165546141 is a wasteful number, since it uses less digits than its factorization.

2165546141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431251.

The product of its digits is 28800, while the sum is 35.

The square root of 2165546141 is about 46535.4288795107. The cubic root of 2165546141 is about 1293.7662386785.

The spelling of 2165546141 in words is "two billion, one hundred sixty-five million, five hundred forty-six thousand, one hundred forty-one".