1118449534020 has 576 divisors, whose sum is σ = 4143799296000. Its totient is φ = 219918606336.

The previous prime is 1118449533967. The next prime is 1118449534067. The reversal of 1118449534020 is 204359448111.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 124281481 + ... + 124290479.

It is an arithmetic number, because the mean of its divisors is an integer number (7194096000).

Almost surely, 2^{1118449534020} is an apocalyptic number.

1118449534020 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 1118449534020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2071899648000).

1118449534020 is an abundant number, since it is smaller than the sum of its proper divisors (3025349761980).

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

1118449534020 is a wasteful number, since it uses less digits than its factorization.

1118449534020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9164 (or 9149 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 1118449534020 in words is "one trillion, one hundred eighteen billion, four hundred forty-nine million, five hundred thirty-four thousand, twenty".