2005500540155 has 16 divisors (see below), whose sum is σ = 2752293722304. Its totient is φ = 1374253879680.

The previous prime is 2005500540139. The next prime is 2005500540163. The reversal of 2005500540155 is 5510450055002.

It is not a de Polignac number, because 2005500540155 - 2⁴ = 2005500540139 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, 19666976 + ... + 19768685.

It is an arithmetic number, because the mean of its divisors is an integer number (172018357644).

Almost surely, 2^{2005500540155} is an apocalyptic number.

2005500540155 is a deficient number, since it is larger than the sum of its proper divisors (746793182149).

2005500540155 is a wasteful number, since it uses less digits than its factorization.

2005500540155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39437126.

The product of its (nonzero) digits is 25000, while the sum is 32.

Adding to 2005500540155 its reverse (5510450055002), we get a palindrome (7515950595157).

The spelling of 2005500540155 in words is "two trillion, five billion, five hundred million, five hundred forty thousand, one hundred fifty-five".