11356355654555 has 4 divisors (see below), whose sum is σ = 13627626785472. Its totient is φ = 9085084523640.

The previous prime is 11356355654543. The next prime is 11356355654557. The reversal of 11356355654555 is 55545655365311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11356355654555 - 2¹² = 11356355650459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11356355654494 and 11356355654503.

It is not an unprimeable number, because it can be changed into a prime (11356355654557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1135635565451 + ... + 1135635565460.

It is an arithmetic number, because the mean of its divisors is an integer number (3406906696368).

Almost surely, 2^{11356355654555} is an apocalyptic number.

11356355654555 is a deficient number, since it is larger than the sum of its proper divisors (2271271130917).

11356355654555 is an equidigital number, since it uses as much as digits as its factorization.

11356355654555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271271130916.

The product of its digits is 101250000, while the sum is 59.

The spelling of 11356355654555 in words is "eleven trillion, three hundred fifty-six billion, three hundred fifty-five million, six hundred fifty-four thousand, five hundred fifty-five".