1055011001155 has 16 divisors (see below), whose sum is σ = 1309701924000. Its totient is φ = 814884456960.

The previous prime is 1055011001153. The next prime is 1055011001173. The reversal of 1055011001155 is 5511001105501.

It is not a de Polignac number, because 1055011001155 - 2¹ = 1055011001153 is a prime.

It is a super-2 number, since 2×1055011001155² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055011001153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8296000 + ... + 8422210.

It is an arithmetic number, because the mean of its divisors is an integer number (81856370250).

Almost surely, 2^{1055011001155} is an apocalyptic number.

1055011001155 is a deficient number, since it is larger than the sum of its proper divisors (254690922845).

1055011001155 is a wasteful number, since it uses less digits than its factorization.

1055011001155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183894.

The product of its (nonzero) digits is 625, while the sum is 25.

Adding to 1055011001155 its reverse (5511001105501), we get a palindrome (6566012106656).

The spelling of 1055011001155 in words is "one trillion, fifty-five billion, eleven million, one thousand, one hundred fifty-five".