1227331647360 has 1728 divisors, whose sum is σ = 5542007824080. Its totient is φ = 258681765888.

The previous prime is 1227331647341. The next prime is 1227331647391. The reversal of 1227331647360 is 637461337221.

1227331647360 is a `hidden beast` number, since 1 + 2 + 273 + 3 + 16 + 4 + 7 + 360 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a super-2 number, since 2×1227331647360² (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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1287860644 + ... + 1287861596.

Almost surely, 2^{1227331647360} is an apocalyptic number.

1227331647360 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 1227331647360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2771003912040).

1227331647360 is an abundant number, since it is smaller than the sum of its proper divisors (4314676176720).

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

1227331647360 is an equidigital number, since it uses as much as digits as its factorization.

1227331647360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 1227331647360 in words is "one trillion, two hundred twenty-seven billion, three hundred thirty-one million, six hundred forty-seven thousand, three hundred sixty".