1677216563 has 8 divisors (see below), whose sum is σ = 1841972400. Its totient is φ = 1514507680.

The previous prime is 1677216559. The next prime is 1677216577. The reversal of 1677216563 is 3656127761.

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 1677216563 - 2² = 1677216559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1677213563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510020 + ... + 513297.

It is an arithmetic number, because the mean of its divisors is an integer number (230246550).

Almost surely, 2^1677216563 is an apocalyptic number.

1677216563 is a deficient number, since it is larger than the sum of its proper divisors (164755837).

1677216563 is a wasteful number, since it uses less digits than its factorization.

1677216563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023477.

The product of its digits is 317520, while the sum is 44.

The square root of 1677216563 is about 40953.8345335330. The cubic root of 1677216563 is about 1188.1274985786.

The spelling of 1677216563 in words is "one billion, six hundred seventy-seven million, two hundred sixteen thousand, five hundred sixty-three".