157217267117 has 4 divisors (see below), whose sum is σ = 162638552220. Its totient is φ = 151795982016.

The previous prime is 157217267101. The next prime is 157217267147. The reversal of 157217267117 is 711762712751.

157217267117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82239327076 + 74977940041 = 286774^2 + 273821^2 .

It is a cyclic number.

It is not a de Polignac number, because 157217267117 - 2⁴ = 157217267101 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 (157217267147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710642508 + ... + 2710642565.

It is an arithmetic number, because the mean of its divisors is an integer number (40659638055).

Almost surely, 2^157217267117 is an apocalyptic number.

It is an amenable number.

157217267117 is a deficient number, since it is larger than the sum of its proper divisors (5421285103).

157217267117 is an equidigital number, since it uses as much as digits as its factorization.

157217267117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421285102.

The product of its digits is 288120, while the sum is 47.

Adding to 157217267117 its reverse (711762712751), we get a palindrome (868979979868).

The spelling of 157217267117 in words is "one hundred fifty-seven billion, two hundred seventeen million, two hundred sixty-seven thousand, one hundred seventeen".