1226611611360 has 192 divisors, whose sum is σ = 4314936225600. Its totient is φ = 325435815936.

The previous prime is 1226611611353. The next prime is 1226611611373. The reversal of 1226611611360 is 631161166221.

1226611611360 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 6 + 1 + 1 + 611 + 36 + 0 = 666.

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 31 ways as a sum of consecutive naturals, for example, 130386 + ... + 1571694.

It is an arithmetic number, because the mean of its divisors is an integer number (22473626175).

Almost surely, 2^{1226611611360} is an apocalyptic number.

1226611611360 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 1226611611360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2157468112800).

1226611611360 is an abundant number, since it is smaller than the sum of its proper divisors (3088324614240).

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

1226611611360 is a wasteful number, since it uses less digits than its factorization.

1226611611360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441530 (or 1441516 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

Adding to 1226611611360 its reverse (631161166221), we get a palindrome (1857772777581).

The spelling of 1226611611360 in words is "one trillion, two hundred twenty-six billion, six hundred eleven million, six hundred eleven thousand, three hundred sixty".