1223793311616 has 256 divisors, whose sum is σ = 3645088972800. Its totient is φ = 404190259200.

The previous prime is 1223793311581. The next prime is 1223793311647. The reversal of 1223793311616 is 6161133973221.

1223793311616 is a `hidden beast` number, since 1 + 2 + 23 + 7 + 9 + 3 + 3 + 1 + 1 + 616 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 479729541 + ... + 479732091.

It is an arithmetic number, because the mean of its divisors is an integer number (14238628800).

Almost surely, 2^{1223793311616} is an apocalyptic number.

1223793311616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223793311616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1822544486400).

1223793311616 is an abundant number, since it is smaller than the sum of its proper divisors (2421295661184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223793311616 is a wasteful number, since it uses less digits than its factorization.

1223793311616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3794 (or 3776 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The spelling of 1223793311616 in words is "one trillion, two hundred twenty-three billion, seven hundred ninety-three million, three hundred eleven thousand, six hundred sixteen".