1161225238653 has 24 divisors (see below), whose sum is σ = 1679751251360. Its totient is φ = 773031016800.

The previous prime is 1161225238631. The next prime is 1161225238699. The reversal of 1161225238653 is 3568325221611.

It is a happy number.

1161225238653 is a `hidden beast` number, since 1 + 1 + 6 + 12 + 252 + 386 + 5 + 3 = 666.

It is not a de Polignac number, because 1161225238653 - 2¹⁰ = 1161225237629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1161225238599 and 1161225238608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161225238853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31080858 + ... + 31118196.

Almost surely, 2^{1161225238653} is an apocalyptic number.

It is an amenable number.

1161225238653 is a deficient number, since it is larger than the sum of its proper divisors (518526012707).

1161225238653 is a wasteful number, since it uses less digits than its factorization.

1161225238653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42249 (or 42246 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 1161225238653 in words is "one trillion, one hundred sixty-one billion, two hundred twenty-five million, two hundred thirty-eight thousand, six hundred fifty-three".