1109403766530 has 256 divisors, whose sum is σ = 3193220620800. Its totient is φ = 273058283520.

The previous prime is 1109403766417. The next prime is 1109403766543. The reversal of 1109403766530 is 356673049011.

It is a happy number.

1109403766530 is a `hidden beast` number, since 1 + 1 + 0 + 9 + 40 + 3 + 76 + 6 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 117256000 + ... + 117265460.

It is an arithmetic number, because the mean of its divisors is an integer number (12473518050).

Almost surely, 2^{1109403766530} is an apocalyptic number.

1109403766530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1109403766530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1596610310400).

1109403766530 is an abundant number, since it is smaller than the sum of its proper divisors (2083816854270).

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

1109403766530 is a wasteful number, since it uses less digits than its factorization.

1109403766530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9986 (or 9980 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 1109403766530 in words is "one trillion, one hundred nine billion, four hundred three million, seven hundred sixty-six thousand, five hundred thirty".