163165650 has 96 divisors (see below), whose sum is σ = 424847808. Its totient is φ = 41395200.

The previous prime is 163165649. The next prime is 163165669. The reversal of 163165650 is 56561361.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264142 + ... + 264758.

It is an arithmetic number, because the mean of its divisors is an integer number (4425498).

Almost surely, 2^163165650 is an apocalyptic number.

163165650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 163165650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212423904).

163165650 is an abundant number, since it is smaller than the sum of its proper divisors (261682158).

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

163165650 is a wasteful number, since it uses less digits than its factorization.

163165650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 163165650 is about 12773.6310421117. The cubic root of 163165650 is about 546.4405399452.

The spelling of 163165650 in words is "one hundred sixty-three million, one hundred sixty-five thousand, six hundred fifty".