163268780 has 24 divisors (see below), whose sum is σ = 343980000. Its totient is φ = 65095040.

The previous prime is 163268773. The next prime is 163268783. The reversal of 163268780 is 87862361.

It is a happy number.

163268780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (163268783) 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, 6905 + ... + 19344.

It is an arithmetic number, because the mean of its divisors is an integer number (14332500).

Almost surely, 2^163268780 is an apocalyptic number.

163268780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163268780 is an abundant number, since it is smaller than the sum of its proper divisors (180711220).

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

163268780 is a wasteful number, since it uses less digits than its factorization.

163268780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26569 (or 26567 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 163268780 is about 12777.6672362368. The cubic root of 163268780 is about 546.5556428973. Note that the first 3 decimals are identical.

The spelling of 163268780 in words is "one hundred sixty-three million, two hundred sixty-eight thousand, seven hundred eighty".