1206689011200 has 360 divisors, whose sum is σ = 4478359413528. Its totient is φ = 321782906880.

The previous prime is 1206689011181. The next prime is 1206689011223. The reversal of 1206689011200 is 21109866021.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2916424 + ... + 3304376.

Almost surely, 2^{1206689011200} is an apocalyptic number.

1206689011200 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 1206689011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2239179706764).

1206689011200 is an abundant number, since it is smaller than the sum of its proper divisors (3271670402328).

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

1206689011200 is an frugal number, since it uses more digits than its factorization.

1206689011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387996 (or 387963 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 1206689011200 in words is "one trillion, two hundred six billion, six hundred eighty-nine million, eleven thousand, two hundred".