1055561616711 has 32 divisors (see below), whose sum is σ = 1801266708480. Its totient is φ = 598428619488.

The previous prime is 1055561616667. The next prime is 1055561616713. The reversal of 1055561616711 is 1176161655501.

1055561616711 is a `hidden beast` number, since 1 + 0 + 5 + 5 + 5 + 616 + 16 + 7 + 11 = 666.

It is not a de Polignac number, because 1055561616711 - 2¹⁷ = 1055561485639 is a prime.

It is a super-2 number, since 2×1055561616711² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055561616713) 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, 21964116 + ... + 22012121.

It is an arithmetic number, because the mean of its divisors is an integer number (56289584640).

Almost surely, 2^{1055561616711} is an apocalyptic number.

1055561616711 is a deficient number, since it is larger than the sum of its proper divisors (745705091769).

1055561616711 is a wasteful number, since it uses less digits than its factorization.

1055561616711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43976380 (or 43976374 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 45.

The spelling of 1055561616711 in words is "one trillion, fifty-five billion, five hundred sixty-one million, six hundred sixteen thousand, seven hundred eleven".