1099018800000 has 1728 divisors, whose sum is σ = 4615324131600. Its totient is φ = 257241600000.

The previous prime is 1099018799999. The next prime is 1099018800013. The reversal of 1099018800000 is 88109901.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 37897199986 + ... + 37897200014.

Almost surely, 2^{1099018800000} is an apocalyptic number.

1099018800000 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 1099018800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2307662065800).

1099018800000 is an abundant number, since it is smaller than the sum of its proper divisors (3516305331600).

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

1099018800000 is an frugal number, since it uses more digits than its factorization.

1099018800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The spelling of 1099018800000 in words is "one trillion, ninety-nine billion, eighteen million, eight hundred thousand".