1563495168 has 144 divisors (see below), whose sum is σ = 4549257216. Its totient is φ = 474562560.

The previous prime is 1563495163. The next prime is 1563495203. The reversal of 1563495168 is 8615943651.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1563495163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402805 + ... + 406667.

It is an arithmetic number, because the mean of its divisors is an integer number (31592064).

Almost surely, 2^1563495168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563495168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274628608).

1563495168 is an abundant number, since it is smaller than the sum of its proper divisors (2985762048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1563495168 is a wasteful number, since it uses less digits than its factorization.

1563495168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930 (or 3916 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 1563495168 is about 39541.0567385344. The cubic root of 1563495168 is about 1160.6435113559.

The spelling of 1563495168 in words is "one billion, five hundred sixty-three million, four hundred ninety-five thousand, one hundred sixty-eight".