1098391311360 has 1320 divisors, whose sum is σ = 4625001887616. Its totient is φ = 244134051840.

The previous prime is 1098391311313. The next prime is 1098391311371. The reversal of 1098391311360 is 631131938901.

It is a happy number.

1098391311360 is a `hidden beast` number, since 1 + 0 + 98 + 391 + 3 + 113 + 60 = 666.

It is a super-2 number, since 2×1098391311360² (a number of 25 digits) contains 22 as substring.

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 119 ways as a sum of consecutive naturals, for example, 15046456284 + ... + 15046456356.

Almost surely, 2^{1098391311360} is an apocalyptic number.

1098391311360 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 1098391311360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2312500943808).

1098391311360 is an abundant number, since it is smaller than the sum of its proper divisors (3526610576256).

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

1098391311360 is an frugal number, since it uses more digits than its factorization.

1098391311360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The spelling of 1098391311360 in words is "one trillion, ninety-eight billion, three hundred ninety-one million, three hundred eleven thousand, three hundred sixty".