1223446745656 has 64 divisors (see below), whose sum is σ = 2327548608000. Its totient is φ = 602827100160.

The previous prime is 1223446745629. The next prime is 1223446745669. The reversal of 1223446745656 is 6565476443221.

It is a junction number, because it is equal to n+sod(n) for n = 1223446745597 and 1223446745606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182084265 + ... + 182090983.

It is an arithmetic number, because the mean of its divisors is an integer number (36367947000).

Almost surely, 2^{1223446745656} is an apocalyptic number.

It is an amenable number.

1223446745656 is a deficient number, since it is larger than the sum of its proper divisors (1104101862344).

1223446745656 is a wasteful number, since it uses less digits than its factorization.

1223446745656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7792 (or 7788 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 55.

The spelling of 1223446745656 in words is "one trillion, two hundred twenty-three billion, four hundred forty-six million, seven hundred forty-five thousand, six hundred fifty-six".