11012351266555 has 4 divisors (see below), whose sum is σ = 13214821519872. Its totient is φ = 8809881013240.

The previous prime is 11012351266549. The next prime is 11012351266583. The reversal of 11012351266555 is 55566215321011.

It is a happy number.

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

It is not a de Polignac number, because 11012351266555 - 2²⁷ = 11012217048827 is a prime.

It is a Duffinian 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, 1101235126651 + ... + 1101235126660.

It is an arithmetic number, because the mean of its divisors is an integer number (3303705379968).

Almost surely, 2^{11012351266555} is an apocalyptic number.

11012351266555 is a deficient number, since it is larger than the sum of its proper divisors (2202470253317).

11012351266555 is an equidigital number, since it uses as much as digits as its factorization.

11012351266555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202470253316.

The product of its (nonzero) digits is 270000, while the sum is 43.

Adding to 11012351266555 its reverse (55566215321011), we get a palindrome (66578566587566).

The spelling of 11012351266555 in words is "eleven trillion, twelve billion, three hundred fifty-one million, two hundred sixty-six thousand, five hundred fifty-five".