161608350 has 96 divisors (see below), whose sum is σ = 422472960. Its totient is φ = 40803840.

The previous prime is 161608333. The next prime is 161608361. The reversal of 161608350 is 53806161.

It is a super-2 number, since 2×161608350² = 52234517579445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

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, 479382 + ... + 479718.

It is an arithmetic number, because the mean of its divisors is an integer number (4400760).

Almost surely, 2^161608350 is an apocalyptic number.

161608350 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 161608350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211236480).

161608350 is an abundant number, since it is smaller than the sum of its proper divisors (260864610).

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

161608350 is a wasteful number, since it uses less digits than its factorization.

161608350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 161608350 is about 12712.5272861064. The cubic root of 161608350 is about 544.6965176241.

The spelling of 161608350 in words is "one hundred sixty-one million, six hundred eight thousand, three hundred fifty".