162557860393 has 2 divisors, whose sum is σ = 162557860394. Its totient is φ = 162557860392.

The previous prime is 162557860391. The next prime is 162557860447. The reversal of 162557860393 is 393068755261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159817651984 + 2740208409 = 399772^2 + 52347^2 .

It is a cyclic number.

It is not a de Polignac number, because 162557860393 - 2¹ = 162557860391 is a prime.

It is a super-2 number, since 2×162557860393² (a number of 23 digits) contains 22 as substring.

Together with 162557860391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (162557860391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81278930196 + 81278930197.

It is an arithmetic number, because the mean of its divisors is an integer number (81278930197).

Almost surely, 2^162557860393 is an apocalyptic number.

It is an amenable number.

162557860393 is a deficient number, since it is larger than the sum of its proper divisors (1).

162557860393 is an equidigital number, since it uses as much as digits as its factorization.

162557860393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 162557860393 in words is "one hundred sixty-two billion, five hundred fifty-seven million, eight hundred sixty thousand, three hundred ninety-three".