161041610 has 8 divisors (see below), whose sum is σ = 289874916. Its totient is φ = 64416640.

The previous prime is 161041609. The next prime is 161041619. The reversal of 161041610 is 16140161.

It can be written as a sum of positive squares in 2 ways, for example, as 137992009 + 23049601 = 11747^2 + 4801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (161041619) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8052071 + ... + 8052090.

Almost surely, 2^161041610 is an apocalyptic number.

161041610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161041610 is a deficient number, since it is larger than the sum of its proper divisors (128833306).

161041610 is a wasteful number, since it uses less digits than its factorization.

161041610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16104168.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 161041610 is about 12690.2170982218. The cubic root of 161041610 is about 544.0590446473.

Adding to 161041610 its reverse (16140161), we get a palindrome (177181771).

The spelling of 161041610 in words is "one hundred sixty-one million, forty-one thousand, six hundred ten".