1163421063 has 72 divisors (see below), whose sum is σ = 2041603200. Its totient is φ = 660124080.

The previous prime is 1163421047. The next prime is 1163421067. The reversal of 1163421063 is 3601243611.

1163421063 is a `hidden beast` number, since 1 + 1 + 634 + 21 + 0 + 6 + 3 = 666.

It is not a de Polignac number, because 1163421063 - 2⁴ = 1163421047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163421067) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2369248 + ... + 2369738.

It is an arithmetic number, because the mean of its divisors is an integer number (28355600).

Almost surely, 2^1163421063 is an apocalyptic number.

1163421063 is a deficient number, since it is larger than the sum of its proper divisors (878182137).

1163421063 is an equidigital number, since it uses as much as digits as its factorization.

1163421063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1163421063 is about 34108.9586912295. The cubic root of 1163421063 is about 1051.7494834360.

Adding to 1163421063 its reverse (3601243611), we get a palindrome (4764664674).

The spelling of 1163421063 in words is "one billion, one hundred sixty-three million, four hundred twenty-one thousand, sixty-three".