11145355233156 has 135 divisors (see below), whose sum is σ = 28964811754515. Its totient is φ = 3613555598400.

The previous prime is 11145355233139. The next prime is 11145355233161. The reversal of 11145355233156 is 65133255354111.

The square root of 11145355233156 is 3338466.

It is a perfect power (a square), and thus also a powerful number.

11145355233156 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 53 + 552 + 33 + 15 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9100684026756 + 2044671206400 = 3016734^2 + 1429920^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 33671767911 + ... + 33671768241.

Almost surely, 2^{11145355233156} is an apocalyptic number.

11145355233156 is the 3338466-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11145355233156

11145355233156 is an abundant number, since it is smaller than the sum of its proper divisors (17819456521359).

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

11145355233156 is an frugal number, since it uses more digits than its factorization.

11145355233156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 377 counting only the distinct ones).

The product of its digits is 810000, while the sum is 45.

The spelling of 11145355233156 in words is "eleven trillion, one hundred forty-five billion, three hundred fifty-five million, two hundred thirty-three thousand, one hundred fifty-six".