54113561361566 has 24 divisors (see below), whose sum is σ = 94422922965576. Its totient is φ = 23191457481360.

The previous prime is 54113561361529. The next prime is 54113561361571. The reversal of 54113561361566 is 66516316531145.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45899996 + ... + 47064176.

It is an arithmetic number, because the mean of its divisors is an integer number (3934288456899).

Almost surely, 2^{54113561361566} is an apocalyptic number.

54113561361566 is a deficient number, since it is larger than the sum of its proper divisors (40309361604010).

54113561361566 is a wasteful number, since it uses less digits than its factorization.

54113561361566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638504 (or 1638497 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 53.

The spelling of 54113561361566 in words is "fifty-four trillion, one hundred thirteen billion, five hundred sixty-one million, three hundred sixty-one thousand, five hundred sixty-six".