2055151021155 has 32 divisors (see below), whose sum is σ = 3317542099200. Its totient is φ = 1086340601472.

The previous prime is 2055151021153. The next prime is 2055151021177. The reversal of 2055151021155 is 5511201515502.

It is not a de Polignac number, because 2055151021155 - 2¹ = 2055151021153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2055151021153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384301 + ... + 2063489.

It is an arithmetic number, because the mean of its divisors is an integer number (103673190600).

Almost surely, 2^{2055151021155} is an apocalyptic number.

2055151021155 is a deficient number, since it is larger than the sum of its proper divisors (1262391078045).

2055151021155 is a wasteful number, since it uses less digits than its factorization.

2055151021155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679923.

The product of its (nonzero) digits is 12500, while the sum is 33.

Adding to 2055151021155 its reverse (5511201515502), we get a palindrome (7566352536657).

The spelling of 2055151021155 in words is "two trillion, fifty-five billion, one hundred fifty-one million, twenty-one thousand, one hundred fifty-five".