1563903216 has 60 divisors (see below), whose sum is σ = 4567060368. Its totient is φ = 498634752.

The previous prime is 1563903203. The next prime is 1563903217. The reversal of 1563903216 is 6123093651.

1563903216 is a `hidden beast` number, since 1 + 5 + 639 + 0 + 3 + 2 + 16 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563903217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232785 + ... + 239408.

Almost surely, 2^1563903216 is an apocalyptic number.

1563903216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1563903216 is an abundant number, since it is smaller than the sum of its proper divisors (3003157152).

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

1563903216 is a wasteful number, since it uses less digits than its factorization.

1563903216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472230 (or 472221 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1563903216 is about 39546.2162033234. The cubic root of 1563903216 is about 1160.7444725610.

Adding to 1563903216 its reverse (6123093651), we get a palindrome (7686996867).

The spelling of 1563903216 in words is "one billion, five hundred sixty-three million, nine hundred three thousand, two hundred sixteen".