163398664575 has 36 divisors (see below), whose sum is σ = 292713736848. Its totient is φ = 87131491200.

The previous prime is 163398664573. The next prime is 163398664589. The reversal of 163398664575 is 575466893361.

163398664575 is a `hidden beast` number, since 1 + 6 + 33 + 98 + 66 + 457 + 5 = 666.

163398664575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163398664575 - 2¹ = 163398664573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163398664573) 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 35 ways as a sum of consecutive naturals, for example, 1374142 + ... + 1488308.

Almost surely, 2^163398664575 is an apocalyptic number.

163398664575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163398664575 is a deficient number, since it is larger than the sum of its proper divisors (129315072273).

163398664575 is a wasteful number, since it uses less digits than its factorization.

163398664575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120544 (or 120536 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 63.

The spelling of 163398664575 in words is "one hundred sixty-three billion, three hundred ninety-eight million, six hundred sixty-four thousand, five hundred seventy-five".