1227622556160 has 1920 divisors, whose sum is σ = 5902827194880. Its totient is φ = 235322081280.

The previous prime is 1227622556141. The next prime is 1227622556161. The reversal of 1227622556160 is 616552267221.

1227622556160 is a `hidden beast` number, since 1 + 2 + 2 + 7 + 6 + 2 + 25 + 5 + 616 + 0 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227622556161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 761079514 + ... + 761081126.

It is an arithmetic number, because the mean of its divisors is an integer number (3074389164).

Almost surely, 2^{1227622556160} is an apocalyptic number.

1227622556160 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 1227622556160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2951413597440).

1227622556160 is an abundant number, since it is smaller than the sum of its proper divisors (4675204638720).

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

1227622556160 is a wasteful number, since it uses less digits than its factorization.

1227622556160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 1227622556160 in words is "one trillion, two hundred twenty-seven billion, six hundred twenty-two million, five hundred fifty-six thousand, one hundred sixty".