11381568148 has 12 divisors (see below), whose sum is σ = 19960953012. Its totient is φ = 5678438720.

The previous prime is 11381568139. The next prime is 11381568151. The reversal of 11381568148 is 84186518311.

It can be written as a sum of positive squares in 2 ways, for example, as 4660519824 + 6721048324 = 68268^2 + 81982^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11381568098 and 11381568107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3084265 + ... + 3087952.

It is an arithmetic number, because the mean of its divisors is an integer number (1663412751).

Almost surely, 2^11381568148 is an apocalyptic number.

It is an amenable number.

11381568148 is a deficient number, since it is larger than the sum of its proper divisors (8579384864).

11381568148 is a wasteful number, since it uses less digits than its factorization.

11381568148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172682 (or 6172680 counting only the distinct ones).

The product of its digits is 184320, while the sum is 46.

The spelling of 11381568148 in words is "eleven billion, three hundred eighty-one million, five hundred sixty-eight thousand, one hundred forty-eight".