161106610 has 24 divisors (see below), whose sum is σ = 337338540. Its totient is φ = 55236384.

The previous prime is 161106607. The next prime is 161106611. The reversal of 161106610 is 16601161.

It can be written as a sum of positive squares in 2 ways, for example, as 144793089 + 16313521 = 12033^2 + 4039^2 .

It is not an unprimeable number, because it can be changed into a prime (161106611) 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 11 ways as a sum of consecutive naturals, for example, 163905 + ... + 164884.

Almost surely, 2^161106610 is an apocalyptic number.

161106610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161106610 is an abundant number, since it is smaller than the sum of its proper divisors (176231930).

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

161106610 is a wasteful number, since it uses less digits than its factorization.

161106610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328810 (or 328803 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 161106610 is about 12692.7778677483. Note that the first 3 decimals coincide. The cubic root of 161106610 is about 544.1322329392.

Adding to 161106610 its reverse (16601161), we get a palindrome (177707771).

The spelling of 161106610 in words is "one hundred sixty-one million, one hundred six thousand, six hundred ten".