65880507238 has 16 divisors (see below), whose sum is σ = 121625552160. Its totient is φ = 26062618176.

The previous prime is 65880507221. The next prime is 65880507247. The reversal of 65880507238 is 83270508856.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 180990223 + ... + 180990586.

It is an arithmetic number, because the mean of its divisors is an integer number (7601597010).

Almost surely, 2^65880507238 is an apocalyptic number.

65880507238 is a deficient number, since it is larger than the sum of its proper divisors (55745044922).

65880507238 is a wasteful number, since it uses less digits than its factorization.

65880507238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361980831.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 65880507238 in words is "sixty-five billion, eight hundred eighty million, five hundred seven thousand, two hundred thirty-eight".