65481222140143 has 8 divisors (see below), whose sum is σ = 69333201579600. Its totient is φ = 61629258572160.

The previous prime is 65481222140129. The next prime is 65481222140153. The reversal of 65481222140143 is 34104122218456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65481222140143 - 2⁴¹ = 63282198884591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65481222140143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65481222140153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5121133 + ... + 12537481.

It is an arithmetic number, because the mean of its divisors is an integer number (8666650197450).

Almost surely, 2^{65481222140143} is an apocalyptic number.

65481222140143 is a deficient number, since it is larger than the sum of its proper divisors (3851979439457).

65481222140143 is a wasteful number, since it uses less digits than its factorization.

65481222140143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7935737.

The product of its (nonzero) digits is 368640, while the sum is 43.

Adding to 65481222140143 its reverse (34104122218456), we get a palindrome (99585344358599).

The spelling of 65481222140143 in words is "sixty-five trillion, four hundred eighty-one billion, two hundred twenty-two million, one hundred forty thousand, one hundred forty-three".