1161220063248 has 240 divisors, whose sum is σ = 3934895043456. Its totient is φ = 312073482240.

The previous prime is 1161220063181. The next prime is 1161220063253. The reversal of 1161220063248 is 8423600221611.

It is a happy number.

1161220063248 is a `hidden beast` number, since 1 + 1 + 6 + 12 + 2 + 0 + 0 + 632 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 29814315 + ... + 29853237.

Almost surely, 2^{1161220063248} is an apocalyptic number.

1161220063248 is a gapful number since it is divisible by the number (18) 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 1161220063248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1967447521728).

1161220063248 is an abundant number, since it is smaller than the sum of its proper divisors (2773674980208).

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

1161220063248 is a wasteful number, since it uses less digits than its factorization.

1161220063248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40702 (or 40693 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

Adding to 1161220063248 its reverse (8423600221611), we get a palindrome (9584820284859).

The spelling of 1161220063248 in words is "one trillion, one hundred sixty-one billion, two hundred twenty million, sixty-three thousand, two hundred forty-eight".