1155644653233 has 16 divisors (see below), whose sum is σ = 1864569525120. Its totient is φ = 621523174656.

The previous prime is 1155644653187. The next prime is 1155644653253. The reversal of 1155644653233 is 3323564465511.

It is not a de Polignac number, because 1155644653233 - 2¹⁰ = 1155644652209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1155644653253) 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, 1618549578 + ... + 1618550291.

It is an arithmetic number, because the mean of its divisors is an integer number (116535595320).

Almost surely, 2^{1155644653233} is an apocalyptic number.

It is an amenable number.

1155644653233 is a deficient number, since it is larger than the sum of its proper divisors (708924871887).

1155644653233 is a wasteful number, since it uses less digits than its factorization.

1155644653233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237099896.

The product of its digits is 3888000, while the sum is 48.

The spelling of 1155644653233 in words is "one trillion, one hundred fifty-five billion, six hundred forty-four million, six hundred fifty-three thousand, two hundred thirty-three".