161008330 has 32 divisors (see below), whose sum is σ = 332265600. Its totient is φ = 55028160.

The previous prime is 161008279. The next prime is 161008361. The reversal of 161008330 is 33800161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19696 + ... + 26644.

It is an arithmetic number, because the mean of its divisors is an integer number (10383300).

Almost surely, 2^161008330 is an apocalyptic number.

161008330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161008330 is an abundant number, since it is smaller than the sum of its proper divisors (171257270).

161008330 is a wasteful number, since it uses less digits than its factorization.

161008330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7294.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 161008330 is about 12688.9057841880. The cubic root of 161008330 is about 544.0215646188.

Adding to 161008330 its reverse (33800161), we get a palindrome (194808491).

The spelling of 161008330 in words is "one hundred sixty-one million, eight thousand, three hundred thirty".