1663180055 has 8 divisors (see below), whose sum is σ = 2004532800. Its totient is φ = 1324732896.

The previous prime is 1663180049. The next prime is 1663180069. The reversal of 1663180055 is 5500813661.

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

It is a cyclic number.

It is not a de Polignac number, because 1663180055 - 2¹⁰ = 1663179031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1663179997 and 1663180024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725135 + ... + 727424.

It is an arithmetic number, because the mean of its divisors is an integer number (250566600).

Almost surely, 2^1663180055 is an apocalyptic number.

1663180055 is a deficient number, since it is larger than the sum of its proper divisors (341352745).

1663180055 is a wasteful number, since it uses less digits than its factorization.

1663180055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452793.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1663180055 is about 40782.1045925783. The cubic root of 1663180055 is about 1184.8037572564.

The spelling of 1663180055 in words is "one billion, six hundred sixty-three million, one hundred eighty thousand, fifty-five".