1216627524725 has 12 divisors (see below), whose sum is σ = 1508634450144. Its totient is φ = 973291491120.

The previous prime is 1216627524661. The next prime is 1216627524727. The reversal of 1216627524725 is 5274257266121.

It is not a de Polignac number, because 1216627524725 - 2⁶ = 1216627524661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216627524727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2787272 + ... + 3194078.

It is an arithmetic number, because the mean of its divisors is an integer number (125719537512).

Almost surely, 2^{1216627524725} is an apocalyptic number.

It is an amenable number.

1216627524725 is a deficient number, since it is larger than the sum of its proper divisors (292006925419).

1216627524725 is a wasteful number, since it uses less digits than its factorization.

1216627524725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526444 (or 526439 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 50.

The spelling of 1216627524725 in words is "one trillion, two hundred sixteen billion, six hundred twenty-seven million, five hundred twenty-four thousand, seven hundred twenty-five".