1563163164 has 24 divisors (see below), whose sum is σ = 4052645520. Its totient is φ = 521054352.

The previous prime is 1563163111. The next prime is 1563163181. The reversal of 1563163164 is 4613613651.

1563163164 is a `hidden beast` number, since 1 + 5 + 631 + 6 + 3 + 16 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7236759 + ... + 7236974.

It is an arithmetic number, because the mean of its divisors is an integer number (168860230).

Almost surely, 2^1563163164 is an apocalyptic number.

It is an amenable number.

1563163164 is an abundant number, since it is smaller than the sum of its proper divisors (2489482356).

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

1563163164 is a wasteful number, since it uses less digits than its factorization.

1563163164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14473746 (or 14473738 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 1563163164 is about 39536.8582970372. The cubic root of 1563163164 is about 1160.5613523627.

The spelling of 1563163164 in words is "one billion, five hundred sixty-three million, one hundred sixty-three thousand, one hundred sixty-four".