1123021166464 has 16 divisors (see below), whose sum is σ = 2237268730320. Its totient is φ = 561510583168.

The previous prime is 1123021166431. The next prime is 1123021166473. The reversal of 1123021166464 is 4646611203211.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×1123021166464² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4386801304 + ... + 4386801559.

It is an arithmetic number, because the mean of its divisors is an integer number (139829295645).

Almost surely, 2^{1123021166464} is an apocalyptic number.

It is an amenable number.

1123021166464 is a deficient number, since it is larger than the sum of its proper divisors (1114247563856).

1123021166464 is an frugal number, since it uses more digits than its factorization.

1123021166464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773602877 (or 8773602865 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

Adding to 1123021166464 its reverse (4646611203211), we get a palindrome (5769632369675).

The spelling of 1123021166464 in words is "one trillion, one hundred twenty-three billion, twenty-one million, one hundred sixty-six thousand, four hundred sixty-four".