1606055563 has 8 divisors (see below), whose sum is σ = 1837126880. Its totient is φ = 1375392960.

The previous prime is 1606055531. The next prime is 1606055587. The reversal of 1606055563 is 3655506061.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1606055563 - 2⁵ = 1606055531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606055513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93708 + ... + 109513.

It is an arithmetic number, because the mean of its divisors is an integer number (229640860).

Almost surely, 2^1606055563 is an apocalyptic number.

1606055563 is a deficient number, since it is larger than the sum of its proper divisors (231071317).

1606055563 is a wasteful number, since it uses less digits than its factorization.

1606055563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204357.

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 1606055563 is about 40075.6230519252. The cubic root of 1606055563 is about 1171.0807854765.

The spelling of 1606055563 in words is "one billion, six hundred six million, fifty-five thousand, five hundred sixty-three".