11264401121555 has 16 divisors (see below), whose sum is σ = 13668500701440. Its totient is φ = 8910964194528.

The previous prime is 11264401121381. The next prime is 11264401121563. The reversal of 11264401121555 is 55512110446211.

It is a cyclic number.

It is not a de Polignac number, because 11264401121555 - 2⁸ = 11264401121299 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15660425 + ... + 16363914.

It is an arithmetic number, because the mean of its divisors is an integer number (854281293840).

Almost surely, 2^{11264401121555} is an apocalyptic number.

11264401121555 is a deficient number, since it is larger than the sum of its proper divisors (2404099579885).

11264401121555 is a wasteful number, since it uses less digits than its factorization.

11264401121555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32025130.

The product of its (nonzero) digits is 48000, while the sum is 38.

Adding to 11264401121555 its reverse (55512110446211), we get a palindrome (66776511567766).

The spelling of 11264401121555 in words is "eleven trillion, two hundred sixty-four billion, four hundred one million, one hundred twenty-one thousand, five hundred fifty-five".