1055011160561 has 12 divisors (see below), whose sum is σ = 1120764218460. Its totient is φ = 992913565440.

The previous prime is 1055011160551. The next prime is 1055011160617. The reversal of 1055011160561 is 1650611105501.

1055011160561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 24290781025 + 1030720379536 = 155855^2 + 1015244^2 .

It is not a de Polignac number, because 1055011160561 - 2¹⁴ = 1055011144177 is a prime.

It is a super-3 number, since 3×1055011160561³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055011160551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9943451 + ... + 10048991.

It is an arithmetic number, because the mean of its divisors is an integer number (93397018205).

Almost surely, 2^{1055011160561} is an apocalyptic number.

It is an amenable number.

1055011160561 is a deficient number, since it is larger than the sum of its proper divisors (65753057899).

1055011160561 is a wasteful number, since it uses less digits than its factorization.

1055011160561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140164 (or 140147 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 1055011160561 in words is "one trillion, fifty-five billion, eleven million, one hundred sixty thousand, five hundred sixty-one".