1099533101940 has 2304 divisors, whose sum is σ = 4784261529600. Its totient is φ = 209515299840.

The previous prime is 1099533101911. The next prime is 1099533101963. The reversal of 1099533101940 is 491013359901.

1099533101940 is a `hidden beast` number, since 1 + 0 + 9 + 9 + 533 + 101 + 9 + 4 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 16410941787 + ... + 16410941853.

It is an arithmetic number, because the mean of its divisors is an integer number (2076502400).

Almost surely, 2^{1099533101940} is an apocalyptic number.

1099533101940 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 1099533101940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2392130764800).

1099533101940 is an abundant number, since it is smaller than the sum of its proper divisors (3684728427660).

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

1099533101940 is a wasteful number, since it uses less digits than its factorization.

1099533101940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The spelling of 1099533101940 in words is "one trillion, ninety-nine billion, five hundred thirty-three million, one hundred one thousand, nine hundred forty".