2155223003305 has 16 divisors (see below), whose sum is σ = 2621810338560. Its totient is φ = 1700485308288.

The previous prime is 2155223003207. The next prime is 2155223003377. The reversal of 2155223003305 is 5033003225512.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155223003305 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9163266 + ... + 9395524.

It is an arithmetic number, because the mean of its divisors is an integer number (163863146160).

Almost surely, 2^{2155223003305} is an apocalyptic number.

It is an amenable number.

2155223003305 is a deficient number, since it is larger than the sum of its proper divisors (466587335255).

2155223003305 is a wasteful number, since it uses less digits than its factorization.

2155223003305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257760.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 2155223003305 its reverse (5033003225512), we get a palindrome (7188226228817).

The spelling of 2155223003305 in words is "two trillion, one hundred fifty-five billion, two hundred twenty-three million, three thousand, three hundred five".