161010611 has 8 divisors (see below), whose sum is σ = 163289280. Its totient is φ = 158738112.

The previous prime is 161010599. The next prime is 161010623. The reversal of 161010611 is 116010161.

It is an interprime number because it is at equal distance from previous prime (161010599) and next prime (161010623).

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

It is a cyclic number.

It is not a de Polignac number, because 161010611 - 2²² = 156816307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161010611.

It is not an unprimeable number, because it can be changed into a prime (161010671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80621 + ... + 82593.

It is an arithmetic number, because the mean of its divisors is an integer number (20411160).

Almost surely, 2^161010611 is an apocalyptic number.

161010611 is a deficient number, since it is larger than the sum of its proper divisors (2278669).

161010611 is a wasteful number, since it uses less digits than its factorization.

161010611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 161010611 is about 12688.9956655363. The cubic root of 161010611 is about 544.0241336522.

Adding to 161010611 its reverse (116010161), we get a palindrome (277020772).

It can be divided in two parts, 1610 and 10611, that added together give a palindrome (12221).

The spelling of 161010611 in words is "one hundred sixty-one million, ten thousand, six hundred eleven".