1123685498880 has 1056 divisors, whose sum is σ = 4705001333280. Its totient is φ = 256842399744.

The previous prime is 1123685498879. The next prime is 1123685498891. The reversal of 1123685498880 is 888945863211.

1123685498880 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 6 + 8 + 549 + 8 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160526499837 + ... + 160526499843.

Almost surely, 2^{1123685498880} is an apocalyptic number.

1123685498880 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 1123685498880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352500666640).

1123685498880 is an abundant number, since it is smaller than the sum of its proper divisors (3581315834400).

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

1123685498880 is an frugal number, since it uses more digits than its factorization.

1123685498880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 63.

The spelling of 1123685498880 in words is "one trillion, one hundred twenty-three billion, six hundred eighty-five million, four hundred ninety-eight thousand, eight hundred eighty".