1299305589120 has 1920 divisors, whose sum is σ = 5904293990400. Its totient is φ = 257596416000.

The previous prime is 1299305589077. The next prime is 1299305589137. The reversal of 1299305589120 is 219855039921.

It is a happy number.

1299305589120 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 30 + 5 + 589 + 1 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 18300078685 + ... + 18300078755.

It is an arithmetic number, because the mean of its divisors is an integer number (3075153120).

Almost surely, 2^{1299305589120} is an apocalyptic number.

1299305589120 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 1299305589120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2952146995200).

1299305589120 is an abundant number, since it is smaller than the sum of its proper divisors (4604988401280).

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

1299305589120 is an equidigital number, since it uses as much as digits as its factorization.

1299305589120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 54.

The spelling of 1299305589120 in words is "one trillion, two hundred ninety-nine billion, three hundred five million, five hundred eighty-nine thousand, one hundred twenty".