1155552657317 has 16 divisors (see below), whose sum is σ = 1168207972080. Its totient is φ = 1142973849600.

The previous prime is 1155552657253. The next prime is 1155552657341. The reversal of 1155552657317 is 7137562555511.

It can be written as a sum of positive squares in 8 ways, for example, as 366713813761 + 788838843556 = 605569^2 + 888166^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155552657317 - 2⁶ = 1155552657253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155552656317) 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, 54700517 + ... + 54721637.

It is an arithmetic number, because the mean of its divisors is an integer number (73012998255).

Almost surely, 2^{1155552657317} is an apocalyptic number.

It is an amenable number.

1155552657317 is a deficient number, since it is larger than the sum of its proper divisors (12655314763).

1155552657317 is a wasteful number, since it uses less digits than its factorization.

1155552657317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22904.

The product of its digits is 5512500, while the sum is 53.

The spelling of 1155552657317 in words is "one trillion, one hundred fifty-five billion, five hundred fifty-two million, six hundred fifty-seven thousand, three hundred seventeen".