65541227623 has 8 divisors (see below), whose sum is σ = 66623165168. Its totient is φ = 64467581184.

The previous prime is 65541227579. The next prime is 65541227641. The reversal of 65541227623 is 32672214556.

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 65541227623 - 2²¹ = 65539130471 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 65541227623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65541225623) by changing a digit.

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, 2056836 + ... + 2088457.

It is an arithmetic number, because the mean of its divisors is an integer number (8327895646).

Almost surely, 2^65541227623 is an apocalyptic number.

65541227623 is a deficient number, since it is larger than the sum of its proper divisors (1081937545).

65541227623 is a wasteful number, since it uses less digits than its factorization.

65541227623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145553.

The product of its digits is 604800, while the sum is 43.

The spelling of 65541227623 in words is "sixty-five billion, five hundred forty-one million, two hundred twenty-seven thousand, six hundred twenty-three".