163879660 has 96 divisors (see below), whose sum is σ = 427932288. Its totient is φ = 51425280.

The previous prime is 163879637. The next prime is 163879663. The reversal of 163879660 is 66978361.

163879660 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 163879660.

It is not an unprimeable number, because it can be changed into a prime (163879663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87130 + ... + 88990.

It is an arithmetic number, because the mean of its divisors is an integer number (4457628).

Almost surely, 2^163879660 is an apocalyptic number.

163879660 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 163879660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213966144).

163879660 is an abundant number, since it is smaller than the sum of its proper divisors (264052628).

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

163879660 is a wasteful number, since it uses less digits than its factorization.

163879660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 163879660 is about 12801.5491250083. The cubic root of 163879660 is about 547.2364514878.

The spelling of 163879660 in words is "one hundred sixty-three million, eight hundred seventy-nine thousand, six hundred sixty".