1055577516566 has 32 divisors (see below), whose sum is σ = 1597544000640. Its totient is φ = 523084853376.

The previous prime is 1055577516557. The next prime is 1055577516571. The reversal of 1055577516566 is 6656157755501.

1055577516566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1055577516566² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159763235 + ... + 159769841.

It is an arithmetic number, because the mean of its divisors is an integer number (49923250020).

Almost surely, 2^{1055577516566} is an apocalyptic number.

1055577516566 is a deficient number, since it is larger than the sum of its proper divisors (541966484074).

1055577516566 is a wasteful number, since it uses less digits than its factorization.

1055577516566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8168.

The product of its (nonzero) digits is 33075000, while the sum is 59.

The spelling of 1055577516566 in words is "one trillion, fifty-five billion, five hundred seventy-seven million, five hundred sixteen thousand, five hundred sixty-six".