163161550 has 96 divisors (see below), whose sum is σ = 337478400. Its totient is φ = 58464000.

The previous prime is 163161541. The next prime is 163161553. The reversal of 163161550 is 55161361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163161553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2298015 + ... + 2298085.

It is an arithmetic number, because the mean of its divisors is an integer number (3515400).

Almost surely, 2^163161550 is an apocalyptic number.

163161550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163161550 is an abundant number, since it is smaller than the sum of its proper divisors (174316850).

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

163161550 is a wasteful number, since it uses less digits than its factorization.

163161550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 163161550 is about 12773.4705542386. The cubic root of 163161550 is about 546.4359629504.

The spelling of 163161550 in words is "one hundred sixty-three million, one hundred sixty-one thousand, five hundred fifty".