11216521561063 has 64 divisors (see below), whose sum is σ = 14836537497600. Its totient is φ = 8409415424256.

The previous prime is 11216521560919. The next prime is 11216521561079. The reversal of 11216521561063 is 36016512561211.

It is a de Polignac number, because none of the positive numbers 2^k-11216521561063 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11216521561093) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10462531 + ... + 11484667.

It is an arithmetic number, because the mean of its divisors is an integer number (231820898400).

Almost surely, 2^{11216521561063} is an apocalyptic number.

11216521561063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11216521561063 is a deficient number, since it is larger than the sum of its proper divisors (3620015936537).

11216521561063 is a wasteful number, since it uses less digits than its factorization.

11216521561063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022301 (or 1022287 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 11216521561063 in words is "eleven trillion, two hundred sixteen billion, five hundred twenty-one million, five hundred sixty-one thousand, sixty-three".