1216465250324 has 12 divisors (see below), whose sum is σ = 2163712781748. Its totient is φ = 598261598400.

The previous prime is 1216465250323. The next prime is 1216465250333. The reversal of 1216465250324 is 4230525646121.

It can be written as a sum of positive squares in 2 ways, for example, as 521356202500 + 695109047824 = 722050^2 + 833732^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216465250323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2492756417 + ... + 2492756904.

It is an arithmetic number, because the mean of its divisors is an integer number (180309398479).

Almost surely, 2^{1216465250324} is an apocalyptic number.

It is an amenable number.

1216465250324 is a deficient number, since it is larger than the sum of its proper divisors (947247531424).

1216465250324 is a wasteful number, since it uses less digits than its factorization.

1216465250324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985513386 (or 4985513384 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 1216465250324 in words is "one trillion, two hundred sixteen billion, four hundred sixty-five million, two hundred fifty thousand, three hundred twenty-four".