1153231816356 has 72 divisors (see below), whose sum is σ = 3098065796280. Its totient is φ = 360453190656.

The previous prime is 1153231816337. The next prime is 1153231816361. The reversal of 1153231816356 is 6536181323511.

1153231816356 is a `hidden beast` number, since 1 + 1 + 5 + 3 + 2 + 3 + 1 + 8 + 1 + 635 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 143628872256 + 1009602944100 = 378984^2 + 1004790^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3337911 + ... + 3667166.

It is an arithmetic number, because the mean of its divisors is an integer number (43028691615).

Almost surely, 2^{1153231816356} is an apocalyptic number.

It is an amenable number.

1153231816356 is an abundant number, since it is smaller than the sum of its proper divisors (1944833979924).

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

1153231816356 is a wasteful number, since it uses less digits than its factorization.

1153231816356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7005373 (or 7005368 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The spelling of 1153231816356 in words is "one trillion, one hundred fifty-three billion, two hundred thirty-one million, eight hundred sixteen thousand, three hundred fifty-six".