11381270655 has 32 divisors (see below), whose sum is σ = 19306425600. Its totient is φ = 5709146112.

The previous prime is 11381270629. The next prime is 11381270657. The reversal of 11381270655 is 55607218311.

11381270655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11381270655 - 2⁵ = 11381270623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381270657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104034 + ... + 183263.

It is an arithmetic number, because the mean of its divisors is an integer number (603325800).

Almost surely, 2^11381270655 is an apocalyptic number.

11381270655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11381270655 is a deficient number, since it is larger than the sum of its proper divisors (7925154945).

11381270655 is a wasteful number, since it uses less digits than its factorization.

11381270655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287463.

The product of its (nonzero) digits is 50400, while the sum is 39.

Adding to 11381270655 its reverse (55607218311), we get a palindrome (66988488966).

The spelling of 11381270655 in words is "eleven billion, three hundred eighty-one million, two hundred seventy thousand, six hundred fifty-five".