1606556015055 has 12 divisors (see below), whose sum is σ = 2784697092840. Its totient is φ = 856829874672.

The previous prime is 1606556015047. The next prime is 1606556015059. The reversal of 1606556015055 is 5505106556061.

1606556015055 is a `hidden beast` number, since 16 + 0 + 65 + 560 + 15 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 1606556015055 - 2³ = 1606556015047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 35701244779 = 1606556015055 / (1 + 6 + 0 + 6 + 5 + 5 + 6 + 0 + 1 + 5 + 0 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1606556015055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606556015059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17850622345 + ... + 17850622434.

It is an arithmetic number, because the mean of its divisors is an integer number (232058091070).

Almost surely, 2^{1606556015055} is an apocalyptic number.

1606556015055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1606556015055 is a deficient number, since it is larger than the sum of its proper divisors (1178141077785).

1606556015055 is a wasteful number, since it uses less digits than its factorization.

1606556015055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35701244790 (or 35701244787 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 1606556015055 in words is "one trillion, six hundred six billion, five hundred fifty-six million, fifteen thousand, fifty-five".