1220807439360 has 264 divisors, whose sum is σ = 4413985729920. Its totient is φ = 311394091008.

The previous prime is 1220807439353. The next prime is 1220807439377. The reversal of 1220807439360 is 639347080221.

1220807439360 is a `hidden beast` number, since 1 + 2 + 208 + 0 + 7 + 439 + 3 + 6 + 0 = 666.

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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 483901 + ... + 1635779.

Almost surely, 2^{1220807439360} is an apocalyptic number.

1220807439360 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 1220807439360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2206992864960).

1220807439360 is an abundant number, since it is smaller than the sum of its proper divisors (3193178290560).

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

1220807439360 is a wasteful number, since it uses less digits than its factorization.

1220807439360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151933 (or 1151912 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 1220807439360 in words is "one trillion, two hundred twenty billion, eight hundred seven million, four hundred thirty-nine thousand, three hundred sixty".