11516284571 has 4 divisors (see below), whose sum is σ = 12563219544. Its totient is φ = 10469349600.

The previous prime is 11516284547. The next prime is 11516284589. The reversal of 11516284571 is 17548261511.

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 11516284571 - 2²² = 11512090267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11516284501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523467470 + ... + 523467491.

It is an arithmetic number, because the mean of its divisors is an integer number (3140804886).

Almost surely, 2^11516284571 is an apocalyptic number.

11516284571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11516284571 is a deficient number, since it is larger than the sum of its proper divisors (1046934973).

11516284571 is a wasteful number, since it uses less digits than its factorization.

11516284571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046934972.

The product of its digits is 67200, while the sum is 41.

The spelling of 11516284571 in words is "eleven billion, five hundred sixteen million, two hundred eighty-four thousand, five hundred seventy-one".