65800020045 has 16 divisors (see below), whose sum is σ = 105592443840. Its totient is φ = 34989206784.

The previous prime is 65800020007. The next prime is 65800020049. The reversal of 65800020045 is 54002000856.

It is not a de Polignac number, because 65800020045 - 2⁶ = 65800019981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65800019994 and 65800020021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65800020049) by changing a digit.

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, 6503355 + ... + 6513464.

It is an arithmetic number, because the mean of its divisors is an integer number (6599527740).

Almost surely, 2^65800020045 is an apocalyptic number.

It is an amenable number.

65800020045 is a deficient number, since it is larger than the sum of its proper divisors (39792423795).

65800020045 is a wasteful number, since it uses less digits than its factorization.

65800020045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13017164.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 65800020045 in words is "sixty-five billion, eight hundred million, twenty thousand, forty-five".