162256253475919 has 2 divisors, whose sum is σ = 162256253475920. Its totient is φ = 162256253475918.

The previous prime is 162256253475769. The next prime is 162256253475977. The reversal of 162256253475919 is 919574352652261.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (919574352652261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162256253475919 - 2³¹ = 162254105992271 is a prime.

It is a super-2 number, since 2×162256253475919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162256253475119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81128126737959 + 81128126737960.

It is an arithmetic number, because the mean of its divisors is an integer number (81128126737960).

Almost surely, 2^{162256253475919} is an apocalyptic number.

162256253475919 is a deficient number, since it is larger than the sum of its proper divisors (1).

162256253475919 is an equidigital number, since it uses as much as digits as its factorization.

162256253475919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944000, while the sum is 67.

The spelling of 162256253475919 in words is "one hundred sixty-two trillion, two hundred fifty-six billion, two hundred fifty-three million, four hundred seventy-five thousand, nine hundred nineteen".