11161434601720 has 128 divisors (see below), whose sum is σ = 27318370262400. Its totient is φ = 4079658663936.

The previous prime is 11161434601703. The next prime is 11161434601747. The reversal of 11161434601720 is 2710643416111.

It is a self number, because there is not a number n which added to its sum of digits gives 11161434601720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25356952 + ... + 25793368.

It is an arithmetic number, because the mean of its divisors is an integer number (213424767675).

Almost surely, 2^{11161434601720} is an apocalyptic number.

11161434601720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11161434601720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13659185131200).

11161434601720 is an abundant number, since it is smaller than the sum of its proper divisors (16156935660680).

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

11161434601720 is a wasteful number, since it uses less digits than its factorization.

11161434601720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436937 (or 436933 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 11161434601720 in words is "eleven trillion, one hundred sixty-one billion, four hundred thirty-four million, six hundred one thousand, seven hundred twenty".