1157165618113 has 4 divisors (see below), whose sum is σ = 1157598853888. Its totient is φ = 1156732382340.

The previous prime is 1157165618093. The next prime is 1157165618131. The reversal of 1157165618113 is 3118165617511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1157165618113 - 2²⁹ = 1156628747201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157165618173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216613881 + ... + 216619222.

It is an arithmetic number, because the mean of its divisors is an integer number (289399713472).

Almost surely, 2^{1157165618113} is an apocalyptic number.

It is an amenable number.

1157165618113 is a deficient number, since it is larger than the sum of its proper divisors (433235775).

1157165618113 is an equidigital number, since it uses as much as digits as its factorization.

1157165618113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433235774.

The product of its digits is 151200, while the sum is 46.

The spelling of 1157165618113 in words is "one trillion, one hundred fifty-seven billion, one hundred sixty-five million, six hundred eighteen thousand, one hundred thirteen".