1109773659456 has 1792 divisors, whose sum is σ = 4449420656640. Its totient is φ = 268268267520.

The previous prime is 1109773659451. The next prime is 1109773659457. The reversal of 1109773659456 is 6549563779011.

It is a happy number.

1109773659456 is a `hidden beast` number, since 1 + 1 + 0 + 9 + 7 + 7 + 36 + 594 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1109773659393 and 1109773659402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109773659451) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 29993882670 + ... + 29993882706.

Almost surely, 2^{1109773659456} is an apocalyptic number.

1109773659456 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 1109773659456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2224710328320).

1109773659456 is an abundant number, since it is smaller than the sum of its proper divisors (3339646997184).

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

1109773659456 is an frugal number, since it uses more digits than its factorization.

1109773659456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 42865200, while the sum is 63.

The spelling of 1109773659456 in words is "one trillion, one hundred nine billion, seven hundred seventy-three million, six hundred fifty-nine thousand, four hundred fifty-six".