1216753256148 has 12 divisors (see below), whose sum is σ = 2839090931040. Its totient is φ = 405584418712.

The previous prime is 1216753256123. The next prime is 1216753256153. The reversal of 1216753256148 is 8416523576121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1216753256148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50698052328 + ... + 50698052351.

It is an arithmetic number, because the mean of its divisors is an integer number (236590910920).

Almost surely, 2^{1216753256148} is an apocalyptic number.

It is an amenable number.

1216753256148 is an abundant number, since it is smaller than the sum of its proper divisors (1622337674892).

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

1216753256148 is a wasteful number, since it uses less digits than its factorization.

1216753256148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101396104686 (or 101396104684 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The spelling of 1216753256148 in words is "one trillion, two hundred sixteen billion, seven hundred fifty-three million, two hundred fifty-six thousand, one hundred forty-eight".