1563722496 has 486 divisors, whose sum is σ = 5732776140. Its totient is φ = 423263232.

The previous prime is 1563722471. The next prime is 1563722533. The reversal of 1563722496 is 6942273651.

1563722496 is a `hidden beast` number, since 1 + 5 + 637 + 2 + 2 + 4 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (486).

It is an unprimeable number.

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 53 ways as a sum of consecutive naturals, for example, 82301175 + ... + 82301193.

Almost surely, 2^1563722496 is an apocalyptic number.

1563722496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563722496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2866388070).

1563722496 is an abundant number, since it is smaller than the sum of its proper divisors (4169053644).

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

1563722496 is an frugal number, since it uses more digits than its factorization.

1563722496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 31 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 1563722496 is about 39543.9312158010. The cubic root of 1563722496 is about 1160.6997601134.

The spelling of 1563722496 in words is "one billion, five hundred sixty-three million, seven hundred twenty-two thousand, four hundred ninety-six".