1055005561011 has 16 divisors (see below), whose sum is σ = 1421552860416. Its totient is φ = 695909399136.

The previous prime is 1055005561003. The next prime is 1055005561013. The reversal of 1055005561011 is 1101655005501.

It is not a de Polignac number, because 1055005561011 - 2³ = 1055005561003 is a prime.

It is a super-2 number, since 2×1055005561011² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055005561011.

It is not an unprimeable number, because it can be changed into a prime (1055005561013) 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, 1108500 + ... + 1827233.

It is an arithmetic number, because the mean of its divisors is an integer number (88847053776).

Almost surely, 2^{1055005561011} is an apocalyptic number.

1055005561011 is a deficient number, since it is larger than the sum of its proper divisors (366547299405).

1055005561011 is a wasteful number, since it uses less digits than its factorization.

1055005561011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937002.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 1055005561011 in words is "one trillion, fifty-five billion, five million, five hundred sixty-one thousand, eleven".