163265620 has 96 divisors (see below), whose sum is σ = 418279680. Its totient is φ = 52254720.

The previous prime is 163265617. The next prime is 163265653. The reversal of 163265620 is 26562361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430591 + ... + 430969.

It is an arithmetic number, because the mean of its divisors is an integer number (4357080).

Almost surely, 2^163265620 is an apocalyptic number.

163265620 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 163265620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209139840).

163265620 is an abundant number, since it is smaller than the sum of its proper divisors (255014060).

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

163265620 is a wasteful number, since it uses less digits than its factorization.

163265620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 163265620 is about 12777.5435823949. The cubic root of 163265620 is about 546.5521167548.

The spelling of 163265620 in words is "one hundred sixty-three million, two hundred sixty-five thousand, six hundred twenty".