2065872155 has 4 divisors (see below), whose sum is σ = 2479046592. Its totient is φ = 1652697720.

The previous prime is 2065872131. The next prime is 2065872173. The reversal of 2065872155 is 5512785602.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2065872155 - 2¹⁰ = 2065871131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 206587211 + ... + 206587220.

It is an arithmetic number, because the mean of its divisors is an integer number (619761648).

Almost surely, 2^2065872155 is an apocalyptic number.

2065872155 is a deficient number, since it is larger than the sum of its proper divisors (413174437).

2065872155 is an equidigital number, since it uses as much as digits as its factorization.

2065872155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413174436.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 2065872155 is about 45451.8663533193. The cubic root of 2065872155 is about 1273.6041944020.

The spelling of 2065872155 in words is "two billion, sixty-five million, eight hundred seventy-two thousand, one hundred fifty-five".