11223344455679 has 32 divisors (see below), whose sum is σ = 12422941488000. Its totient is φ = 10085381177344.

The previous prime is 11223344455667. The next prime is 11223344455693. The reversal of 11223344455679 is 97655444332211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223344455679 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223344455619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511792787 + ... + 511814715.

It is an arithmetic number, because the mean of its divisors is an integer number (388216921500).

Almost surely, 2^{11223344455679} is an apocalyptic number.

11223344455679 is a deficient number, since it is larger than the sum of its proper divisors (1199597032321).

11223344455679 is a wasteful number, since it uses less digits than its factorization.

11223344455679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24307.

The product of its digits is 21772800, while the sum is 56.

The spelling of 11223344455679 in words is "eleven trillion, two hundred twenty-three billion, three hundred forty-four million, four hundred fifty-five thousand, six hundred seventy-nine".