1103994178560 has 2112 divisors, whose sum is σ = 5007125760000. Its totient is φ = 231760134144.

The previous prime is 1103994178541. The next prime is 1103994178583. The reversal of 1103994178560 is 658714993011.

1103994178560 is a `hidden beast` number, since 1 + 1 + 0 + 3 + 9 + 9 + 4 + 1 + 78 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1103994178497 and 1103994178506.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5547709341 + ... + 5547709539.

Almost surely, 2^{1103994178560} is an apocalyptic number.

1103994178560 is a gapful number since it is divisible by the number (10) 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 1103994178560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2503562880000).

1103994178560 is an abundant number, since it is smaller than the sum of its proper divisors (3903131581440).

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

1103994178560 is an equidigital number, since it uses as much as digits as its factorization.

1103994178560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 1103994178560 in words is "one trillion, one hundred three billion, nine hundred ninety-four million, one hundred seventy-eight thousand, five hundred sixty".