1215011040416 has 24 divisors (see below), whose sum is σ = 2392083375444. Its totient is φ = 607497802240.

The previous prime is 1215011040361. The next prime is 1215011040421. The reversal of 1215011040416 is 6140401105121.

It can be written as a sum of positive squares in 2 ways, for example, as 1190673792400 + 24337248016 = 1091180^2 + 156004^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2978036 + ... + 3361356.

Almost surely, 2^{1215011040416} is an apocalyptic number.

1215011040416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1215011040416 is a deficient number, since it is larger than the sum of its proper divisors (1177072335028).

1215011040416 is an equidigital number, since it uses as much as digits as its factorization.

1215011040416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482384 (or 482376 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 1215011040416 its reverse (6140401105121), we get a palindrome (7355412145537).

The spelling of 1215011040416 in words is "one trillion, two hundred fifteen billion, eleven million, forty thousand, four hundred sixteen".