11566161553062 has 128 divisors (see below), whose sum is σ = 25196799767040. Its totient is φ = 3527489710080.

The previous prime is 11566161553021. The next prime is 11566161553099. The reversal of 11566161553062 is 26035516166511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 233178048 + ... + 233227644.

It is an arithmetic number, because the mean of its divisors is an integer number (196849998180).

Almost surely, 2^{11566161553062} is an apocalyptic number.

11566161553062 is an abundant number, since it is smaller than the sum of its proper divisors (13630638213978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11566161553062 is a wasteful number, since it uses less digits than its factorization.

11566161553062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50198.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 11566161553062 in words is "eleven trillion, five hundred sixty-six billion, one hundred sixty-one million, five hundred fifty-three thousand, sixty-two".