65505372388383 has 16 divisors (see below), whose sum is σ = 90397709700480. Its totient is φ = 42143157398496.

The previous prime is 65505372388319. The next prime is 65505372388439. The reversal of 65505372388383 is 38388327350556.

It is a happy number.

It is not a de Polignac number, because 65505372388383 - 2⁶ = 65505372388319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65505372388303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189292485 + ... + 189638222.

It is an arithmetic number, because the mean of its divisors is an integer number (5649856856280).

Almost surely, 2^{65505372388383} is an apocalyptic number.

65505372388383 is a deficient number, since it is larger than the sum of its proper divisors (24892337312097).

65505372388383 is a wasteful number, since it uses less digits than its factorization.

65505372388383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378932726.

The product of its (nonzero) digits is 435456000, while the sum is 66.

The spelling of 65505372388383 in words is "sixty-five trillion, five hundred five billion, three hundred seventy-two million, three hundred eighty-eight thousand, three hundred eighty-three".