163242645800 has 768 divisors, whose sum is σ = 473703014400. Its totient is φ = 51732172800.

The previous prime is 163242645793. The next prime is 163242645803. The reversal of 163242645800 is 8546242361.

It is a super-2 number, since 2×163242645800² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163242645803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2436457367 + ... + 2436457433.

It is an arithmetic number, because the mean of its divisors is an integer number (616800800).

Almost surely, 2^163242645800 is an apocalyptic number.

163242645800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163242645800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236851507200).

163242645800 is an abundant number, since it is smaller than the sum of its proper divisors (310460368600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163242645800 is a wasteful number, since it uses less digits than its factorization.

163242645800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 163242645800 in words is "one hundred sixty-three billion, two hundred forty-two million, six hundred forty-five thousand, eight hundred".