11142564563 has 4 divisors (see below), whose sum is σ = 11999684928. Its totient is φ = 10285444200.

The previous prime is 11142564557. The next prime is 11142564571. The reversal of 11142564563 is 36546524111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11142564563 - 2¹⁸ = 11142302419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142566563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428560163 + ... + 428560188.

It is an arithmetic number, because the mean of its divisors is an integer number (2999921232).

Almost surely, 2^11142564563 is an apocalyptic number.

11142564563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11142564563 is a deficient number, since it is larger than the sum of its proper divisors (857120365).

11142564563 is an equidigital number, since it uses as much as digits as its factorization.

11142564563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857120364.

The product of its digits is 86400, while the sum is 38.

The spelling of 11142564563 in words is "eleven billion, one hundred forty-two million, five hundred sixty-four thousand, five hundred sixty-three".