1563321164 has 24 divisors (see below), whose sum is σ = 2765439600. Its totient is φ = 773219520.

The previous prime is 1563321157. The next prime is 1563321167. The reversal of 1563321164 is 4611233651.

It is a self number, because there is not a number n which added to its sum of digits gives 1563321164.

It is not an unprimeable number, because it can be changed into a prime (1563321167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298682 + ... + 303870.

It is an arithmetic number, because the mean of its divisors is an integer number (115226650).

Almost surely, 2^1563321164 is an apocalyptic number.

It is an amenable number.

1563321164 is a deficient number, since it is larger than the sum of its proper divisors (1202118436).

1563321164 is a wasteful number, since it uses less digits than its factorization.

1563321164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5993 (or 5991 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 1563321164 is about 39538.8563820452. The cubic root of 1563321164 is about 1160.6004531041.

The spelling of 1563321164 in words is "one billion, five hundred sixty-three million, three hundred twenty-one thousand, one hundred sixty-four".