2155541031305 has 8 divisors (see below), whose sum is σ = 2670089535744. Its totient is φ = 1668805959600.

The previous prime is 2155541031271. The next prime is 2155541031353. The reversal of 2155541031305 is 5031301455512.

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

It is not a de Polignac number, because 2155541031305 - 2¹⁶ = 2155540965769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6953358011 + ... + 6953358320.

It is an arithmetic number, because the mean of its divisors is an integer number (333761191968).

Almost surely, 2^{2155541031305} is an apocalyptic number.

It is an amenable number.

2155541031305 is a deficient number, since it is larger than the sum of its proper divisors (514548504439).

2155541031305 is a wasteful number, since it uses less digits than its factorization.

2155541031305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13906716367.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 2155541031305 its reverse (5031301455512), we get a palindrome (7186842486817).

The spelling of 2155541031305 in words is "two trillion, one hundred fifty-five billion, five hundred forty-one million, thirty-one thousand, three hundred five".