2065156345 has 16 divisors (see below), whose sum is σ = 2998816128. Its totient is φ = 1332806400.

The previous prime is 2065156307. The next prime is 2065156363. The reversal of 2065156345 is 5436515602.

It is not a de Polignac number, because 2065156345 - 2⁷ = 2065156217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1734831 + ... + 1736020.

It is an arithmetic number, because the mean of its divisors is an integer number (187426008).

Almost surely, 2^2065156345 is an apocalyptic number.

It is an amenable number.

2065156345 is a deficient number, since it is larger than the sum of its proper divisors (933659783).

2065156345 is a wasteful number, since it uses less digits than its factorization.

2065156345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470880.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 2065156345 is about 45443.9912969801. The cubic root of 2065156345 is about 1273.4570791459.

The spelling of 2065156345 in words is "two billion, sixty-five million, one hundred fifty-six thousand, three hundred forty-five".