654065116423 has 32 divisors (see below), whose sum is σ = 694642646016. Its totient is φ = 615025571328.

The previous prime is 654065116417. The next prime is 654065116427. The reversal of 654065116423 is 324611560456.

It is a cyclic number.

It is not a de Polignac number, because 654065116423 - 2²⁹ = 653528245511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 654065116423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654065116427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116316790 + ... + 116322412.

It is an arithmetic number, because the mean of its divisors is an integer number (21707582688).

Almost surely, 2^654065116423 is an apocalyptic number.

654065116423 is a deficient number, since it is larger than the sum of its proper divisors (40577529593).

654065116423 is a wasteful number, since it uses less digits than its factorization.

654065116423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463.

The product of its (nonzero) digits is 518400, while the sum is 43.

Adding to 654065116423 its reverse (324611560456), we get a palindrome (978676676879).

The spelling of 654065116423 in words is "six hundred fifty-four billion, sixty-five million, one hundred sixteen thousand, four hundred twenty-three".