11616212013 has 16 divisors (see below), whose sum is σ = 18742124160. Its totient is φ = 6247374336.

The previous prime is 11616211987. The next prime is 11616212029. The reversal of 11616212013 is 31021261611.

It is a happy number.

It is not a de Polignac number, because 11616212013 - 2¹² = 11616207917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11616212063) 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, 16268848 + ... + 16269561.

It is an arithmetic number, because the mean of its divisors is an integer number (1171382760).

Almost surely, 2^11616212013 is an apocalyptic number.

It is an amenable number.

11616212013 is a deficient number, since it is larger than the sum of its proper divisors (7125912147).

11616212013 is a wasteful number, since it uses less digits than its factorization.

11616212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32538436.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 11616212013 its reverse (31021261611), we get a palindrome (42637473624).

The spelling of 11616212013 in words is "eleven billion, six hundred sixteen million, two hundred twelve thousand, thirteen".