1165653552897 has 16 divisors (see below), whose sum is σ = 1750550239680. Its totient is φ = 766457129376.

The previous prime is 1165653552883. The next prime is 1165653552907. The reversal of 1165653552897 is 7982553565611.

1165653552897 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 6 + 535 + 5 + 2 + 8 + 97 = 666.

It is not a de Polignac number, because 1165653552897 - 2¹⁰ = 1165653551873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165653556897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295699083 + ... + 295703024.

It is an arithmetic number, because the mean of its divisors is an integer number (109409389980).

Almost surely, 2^{1165653552897} is an apocalyptic number.

It is an amenable number.

1165653552897 is a deficient number, since it is larger than the sum of its proper divisors (584896686783).

1165653552897 is an equidigital number, since it uses as much as digits as its factorization.

1165653552897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591402189 (or 591402183 counting only the distinct ones).

The product of its digits is 68040000, while the sum is 63.

The spelling of 1165653552897 in words is "one trillion, one hundred sixty-five billion, six hundred fifty-three million, five hundred fifty-two thousand, eight hundred ninety-seven".