163500557 has 16 divisors (see below), whose sum is σ = 182696640. Its totient is φ = 145065600.

The previous prime is 163500553. The next prime is 163500559. The reversal of 163500557 is 755005361.

It is a cyclic number.

It is not a de Polignac number, because 163500557 - 2² = 163500553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163500553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92393 + ... + 94145.

It is an arithmetic number, because the mean of its divisors is an integer number (11418540).

Almost surely, 2^163500557 is an apocalyptic number.

It is an amenable number.

163500557 is a deficient number, since it is larger than the sum of its proper divisors (19196083).

163500557 is a wasteful number, since it uses less digits than its factorization.

163500557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 163500557 is about 12786.7336329494. The cubic root of 163500557 is about 546.8141514536.

The spelling of 163500557 in words is "one hundred sixty-three million, five hundred thousand, five hundred fifty-seven".