1220360766044 has 96 divisors (see below), whose sum is σ = 2572166553600. Its totient is φ = 505885564800.

The previous prime is 1220360766029. The next prime is 1220360766049. The reversal of 1220360766044 is 4406670630221.

It is a junction number, because it is equal to n+sod(n) for n = 1220360765992 and 1220360766010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220360766049) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 101092529 + ... + 101104599.

It is an arithmetic number, because the mean of its divisors is an integer number (26793401600).

Almost surely, 2^{1220360766044} is an apocalyptic number.

1220360766044 is a gapful number since it is divisible by the number (14) 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 1220360766044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1286083276800).

1220360766044 is an abundant number, since it is smaller than the sum of its proper divisors (1351805787556).

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

1220360766044 is a wasteful number, since it uses less digits than its factorization.

1220360766044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14504 (or 14488 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 1220360766044 in words is "one trillion, two hundred twenty billion, three hundred sixty million, seven hundred sixty-six thousand, forty-four".