1157720230593 has 20 divisors (see below), whose sum is σ = 1753124809348. Its totient is φ = 761240695680.

The previous prime is 1157720230567. The next prime is 1157720230633. The reversal of 1157720230593 is 3950320277511.

1157720230593 is a `hidden beast` number, since 1 + 1 + 5 + 7 + 7 + 20 + 2 + 30 + 593 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 945781535169 + 211938695424 = 972513^2 + 460368^2 .

It is not a de Polignac number, because 1157720230593 - 2²² = 1157716036289 is a prime.

It is a super-3 number, since 3×1157720230593³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157720230193) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97890268 + ... + 97902093.

Almost surely, 2^{1157720230593} is an apocalyptic number.

It is an amenable number.

1157720230593 is a deficient number, since it is larger than the sum of its proper divisors (595404578755).

1157720230593 is an equidigital number, since it uses as much as digits as its factorization.

1157720230593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195792446 (or 195792437 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 45.

The spelling of 1157720230593 in words is "one trillion, one hundred fifty-seven billion, seven hundred twenty million, two hundred thirty thousand, five hundred ninety-three".