163557713 has 8 divisors (see below), whose sum is σ = 178553856. Its totient is φ = 148582800.

The previous prime is 163557701. The next prime is 163557721. The reversal of 163557713 is 317755361.

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

It is a cyclic number.

It is not a de Polignac number, because 163557713 - 2¹⁶ = 163492177 is a prime.

It is a super-2 number, since 2×163557713² = 53502250963580738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163557743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13823 + ... + 22763.

It is an arithmetic number, because the mean of its divisors is an integer number (22319232).

Almost surely, 2^163557713 is an apocalyptic number.

It is an amenable number.

163557713 is a deficient number, since it is larger than the sum of its proper divisors (14996143).

163557713 is a wasteful number, since it uses less digits than its factorization.

163557713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615.

The product of its digits is 66150, while the sum is 38.

The square root of 163557713 is about 12788.9684103136. The cubic root of 163557713 is about 546.8778618756.

The spelling of 163557713 in words is "one hundred sixty-three million, five hundred fifty-seven thousand, seven hundred thirteen".