11555156662104 has 128 divisors (see below), whose sum is σ = 31830864192000. Its totient is φ = 3466372992000.

The previous prime is 11555156662067. The next prime is 11555156662117. The reversal of 11555156662104 is 40126665155511.

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, 200724477 + ... + 200782035.

It is an arithmetic number, because the mean of its divisors is an integer number (248678626500).

Almost surely, 2^{11555156662104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11555156662104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15915432096000).

11555156662104 is an abundant number, since it is smaller than the sum of its proper divisors (20275707529896).

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

11555156662104 is a wasteful number, since it uses less digits than its factorization.

11555156662104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65209 (or 65205 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 48.

The spelling of 11555156662104 in words is "eleven trillion, five hundred fifty-five billion, one hundred fifty-six million, six hundred sixty-two thousand, one hundred four".