1263160201216 has 117 divisors (see below), whose sum is σ = 2685941616351. Its totient is φ = 593852891136.

The previous prime is 1263160201213. The next prime is 1263160201231. The reversal of 1263160201216 is 6121020613621.

It is a happy number.

The square root of 1263160201216 is 1123904.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 767544201216 + 495616000000 = 876096^2 + 704000^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1263160201211) 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 8 ways as a sum of consecutive naturals, for example, 1222807036 + ... + 1222808068.

Almost surely, 2^{1263160201216} is an apocalyptic number.

1263160201216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1263160201216 is the 1123904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263160201216

1263160201216 is an abundant number, since it is smaller than the sum of its proper divisors (1422781415135).

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

1263160201216 is an frugal number, since it uses more digits than its factorization.

1263160201216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 1263160201216 its reverse (6121020613621), we get a palindrome (7384180814837).

The spelling of 1263160201216 in words is "one trillion, two hundred sixty-three billion, one hundred sixty million, two hundred one thousand, two hundred sixteen".