1168213563 has 16 divisors (see below), whose sum is σ = 1888022400. Its totient is φ = 708008040.

The previous prime is 1168213547. The next prime is 1168213577. The reversal of 1168213563 is 3653128611.

1168213563 is a `hidden beast` number, since 1 + 1 + 6 + 82 + 13 + 563 = 666.

It is not a de Polignac number, because 1168213563 - 2⁴ = 1168213547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1168213513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1966393 + ... + 1966986.

It is an arithmetic number, because the mean of its divisors is an integer number (118001400).

Almost surely, 2^1168213563 is an apocalyptic number.

1168213563 is a deficient number, since it is larger than the sum of its proper divisors (719808837).

1168213563 is a wasteful number, since it uses less digits than its factorization.

1168213563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933399 (or 3933393 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1168213563 is about 34179.1392957751. The cubic root of 1168213563 is about 1053.1916680997.

The spelling of 1168213563 in words is "one billion, one hundred sixty-eight million, two hundred thirteen thousand, five hundred sixty-three".