163806630513 has 8 divisors (see below), whose sum is σ = 219362592000. Its totient is φ = 108727544688.

The previous prime is 163806630497. The next prime is 163806630569. The reversal of 163806630513 is 315036608361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163806630513 - 2⁴ = 163806630497 is a prime.

It is a super-2 number, since 2×163806630513² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163806630613) 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 in 7 ways as a sum of consecutive naturals, for example, 119218113 + ... + 119219486.

It is an arithmetic number, because the mean of its divisors is an integer number (27420324000).

Almost surely, 2^163806630513 is an apocalyptic number.

It is an amenable number.

163806630513 is a deficient number, since it is larger than the sum of its proper divisors (55555961487).

163806630513 is a wasteful number, since it uses less digits than its factorization.

163806630513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238437831.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 163806630513 in words is "one hundred sixty-three billion, eight hundred six million, six hundred thirty thousand, five hundred thirteen".