23420544555305 has 8 divisors (see below), whose sum is σ = 28113907568712. Its totient is φ = 18730266242688.

The previous prime is 23420544555301. The next prime is 23420544555337. The reversal of 23420544555305 is 50355544502432.

It can be written as a sum of positive squares in 4 ways, for example, as 5771026071616 + 17649518483689 = 2402296^2 + 4201133^2 .

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 23420544555305 - 2² = 23420544555301 is a prime.

It is a super-3 number, since 3×23420544555305³ (a number of 41 digits) contains 333 as substring.

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 23420544555305.

It is not an unprimeable number, because it can be changed into a prime (23420544555301) 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, 771158492 + ... + 771188861.

It is an arithmetic number, because the mean of its divisors is an integer number (3514238446089).

Almost surely, 2^{23420544555305} is an apocalyptic number.

It is an amenable number.

23420544555305 is a deficient number, since it is larger than the sum of its proper divisors (4693363013407).

23420544555305 is a wasteful number, since it uses less digits than its factorization.

23420544555305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542350395.

The product of its (nonzero) digits is 7200000, while the sum is 47.

The spelling of 23420544555305 in words is "twenty-three trillion, four hundred twenty billion, five hundred forty-four million, five hundred fifty-five thousand, three hundred five".