1163823309657 has 24 divisors (see below), whose sum is σ = 1769692739360. Its totient is φ = 734989464000.

The previous prime is 1163823309631. The next prime is 1163823309661. The reversal of 1163823309657 is 7569033283611.

It is not a de Polignac number, because 1163823309657 - 2⁸ = 1163823309401 is a prime.

It is a super-2 number, since 2×1163823309657² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163823309667) 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, 2012157 + ... + 2525157.

Almost surely, 2^{1163823309657} is an apocalyptic number.

It is an amenable number.

1163823309657 is a deficient number, since it is larger than the sum of its proper divisors (605869429703).

1163823309657 is a wasteful number, since it uses less digits than its factorization.

1163823309657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526293 (or 526290 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 1163823309657 in words is "one trillion, one hundred sixty-three billion, eight hundred twenty-three million, three hundred nine thousand, six hundred fifty-seven".