1227905602560 has 704 divisors, whose sum is σ = 5370830169600. Its totient is φ = 259071934464.

The previous prime is 1227905602549. The next prime is 1227905602577. The reversal of 1227905602560 is 652065097221.

1227905602560 is a `hidden beast` number, since 1 + 2 + 2 + 7 + 9 + 0 + 560 + 25 + 60 = 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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12531036 + ... + 12628644.

Almost surely, 2^{1227905602560} is an apocalyptic number.

1227905602560 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 1227905602560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2685415084800).

1227905602560 is an abundant number, since it is smaller than the sum of its proper divisors (4142924567040).

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

1227905602560 is a wasteful number, since it uses less digits than its factorization.

1227905602560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97663 (or 97639 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 1227905602560 in words is "one trillion, two hundred twenty-seven billion, nine hundred five million, six hundred two thousand, five hundred sixty".