1118266490880 has 2048 divisors, whose sum is σ = 5133749760000. Its totient is φ = 228898897920.

The previous prime is 1118266490863. The next prime is 1118266490911. The reversal of 1118266490880 is 880946628111.

It is a happy number.

1118266490880 is a `hidden beast` number, since 1 + 1 + 18 + 2 + 66 + 490 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (2048).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16690544607 + ... + 16690544673.

It is an arithmetic number, because the mean of its divisors is an integer number (2506713750).

Almost surely, 2^{1118266490880} is an apocalyptic number.

1118266490880 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 1118266490880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2566874880000).

1118266490880 is an abundant number, since it is smaller than the sum of its proper divisors (4015483269120).

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

1118266490880 is an frugal number, since it uses more digits than its factorization.

1118266490880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 1118266490880 in words is "one trillion, one hundred eighteen billion, two hundred sixty-six million, four hundred ninety thousand, eight hundred eighty".