1055510110155 has 16 divisors (see below), whose sum is σ = 1703761454880. Its totient is φ = 557956965888.

The previous prime is 1055510110139. The next prime is 1055510110163. The reversal of 1055510110155 is 5510110155501.

It is a happy number.

It is not a de Polignac number, because 1055510110155 - 2⁴ = 1055510110139 is a prime.

It is a super-2 number, since 2×1055510110155² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311358220 + ... + 311361609.

It is an arithmetic number, because the mean of its divisors is an integer number (106485090930).

Almost surely, 2^{1055510110155} is an apocalyptic number.

1055510110155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055510110155 is a deficient number, since it is larger than the sum of its proper divisors (648251344725).

1055510110155 is a wasteful number, since it uses less digits than its factorization.

1055510110155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622719950.

The product of its (nonzero) digits is 3125, while the sum is 30.

Adding to 1055510110155 its reverse (5510110155501), we get a palindrome (6565620265656).

The spelling of 1055510110155 in words is "one trillion, fifty-five billion, five hundred ten million, one hundred ten thousand, one hundred fifty-five".