65140245400443 has 16 divisors (see below), whose sum is σ = 87056253930240. Its totient is φ = 43325592940064.

The previous prime is 65140245400441. The next prime is 65140245400523. The reversal of 65140245400443 is 34400454204156.

It is a cyclic number.

It is not a de Polignac number, because 65140245400443 - 2¹ = 65140245400441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65140245400395 and 65140245400404.

It is not an unprimeable number, because it can be changed into a prime (65140245400441) 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, 3030021 + ... + 11809382.

It is an arithmetic number, because the mean of its divisors is an integer number (5441015870640).

Almost surely, 2^{65140245400443} is an apocalyptic number.

65140245400443 is a deficient number, since it is larger than the sum of its proper divisors (21916008529797).

65140245400443 is a wasteful number, since it uses less digits than its factorization.

65140245400443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14842818.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 65140245400443 its reverse (34400454204156), we get a palindrome (99540699604599).

The spelling of 65140245400443 in words is "sixty-five trillion, one hundred forty billion, two hundred forty-five million, four hundred thousand, four hundred forty-three".