11616600616509 has 16 divisors (see below), whose sum is σ = 17726738440320. Its totient is φ = 6628588075200.

The previous prime is 11616600616499. The next prime is 11616600616591. The reversal of 11616600616509 is 90561600661611.

It is not a de Polignac number, because 11616600616509 - 2⁷ = 11616600616381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11616600616909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394544094 + ... + 394573535.

It is an arithmetic number, because the mean of its divisors is an integer number (1107921152520).

Almost surely, 2^{11616600616509} is an apocalyptic number.

It is an amenable number.

11616600616509 is a deficient number, since it is larger than the sum of its proper divisors (6110137823811).

11616600616509 is an equidigital number, since it uses as much as digits as its factorization.

11616600616509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789118340.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 11616600616509 in words is "eleven trillion, six hundred sixteen billion, six hundred million, six hundred sixteen thousand, five hundred nine".