162553663 has 2 divisors, whose sum is σ = 162553664. Its totient is φ = 162553662.

The previous prime is 162553661. The next prime is 162553669. The reversal of 162553663 is 366355261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162553663 - 2¹ = 162553661 is a prime.

Together with 162553661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162553661) 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, 81276831 + 81276832.

It is an arithmetic number, because the mean of its divisors is an integer number (81276832).

Almost surely, 2^162553663 is an apocalyptic number.

162553663 is a deficient number, since it is larger than the sum of its proper divisors (1).

162553663 is an equidigital number, since it uses as much as digits as its factorization.

162553663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 37.

The square root of 162553663 is about 12749.6534462706. The cubic root of 162553663 is about 545.7565040644.

It can be divided in two parts, 162553 and 663, that added together give a square (163216 = 404²).

The spelling of 162553663 in words is "one hundred sixty-two million, five hundred fifty-three thousand, six hundred sixty-three".