162381597157 has 6 divisors (see below), whose sum is σ = 175833327282. Its totient is φ = 149890704912.

The previous prime is 162381597149. The next prime is 162381597241. The reversal of 162381597157 is 751795183261.

It is a Cunningham number, because it is equal to 402966²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 162381597156 = 1^2 + 402966^2 .

It is not a de Polignac number, because 162381597157 - 2³ = 162381597149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162381597098 and 162381597107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162381597137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 480418758 + ... + 480419095.

It is an arithmetic number, because the mean of its divisors is an integer number (29305554547).

Almost surely, 2^162381597157 is an apocalyptic number.

It is an amenable number.

162381597157 is a deficient number, since it is larger than the sum of its proper divisors (13451730125).

162381597157 is an equidigital number, since it uses as much as digits as its factorization.

162381597157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960837879 (or 960837866 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 55.

The spelling of 162381597157 in words is "one hundred sixty-two billion, three hundred eighty-one million, five hundred ninety-seven thousand, one hundred fifty-seven".